Heteroaryl diamide compounds useful as MMP-13 inhibitors

ABSTRACT

Disclosed are compounds and compositions of the formula (I) as described herein which are inhibitors of MMP-13. Also disclosed are methods of using and making compounds of the formula (I).

APPLICATION DATA

This application claims benefit to U.S. provisional application Ser. No.61/115,216 filed Nov. 17, 2008.

BACKGROUND OF THE INVENTION

1. Technical Field

The invention relates to MMP-13 metalloprotease inhibiting compounds.

2. Background Information

Matrix metalloproteinases (MMPs) are zinc-dependent endopeptidases. MMPsfunction to degrade extracellular matrix proteins and are involved inthe cleavage of cell surface receptors, growth factors, cell-adhesionmolecules, cytokines and chemokines, as well as other MMPs and unrelatedproteases. MMPs are also thought to play a major role on cellularprocesses such as proliferation, migration (adhesion/dispersion),differentiation, angiogenesis, apoptosis and host defense. (Hu J. et al.Nat. Rev. Drug Discov. 2007 6:480-498; Ramnath N. and Creaven P. J.Curr. Oncol. Rep. 2004 6:96-102). MMPs are therefore targets fortherapeutic diseases including rheumatoid arthritis, osteoarthritis,osteoporosis, peridontitis, atherosclerosis, congestive heart failure,multiple sclerosis and tumor metastasis.

The mammalian MMP family includes more than 20 members that share commonstructural attributes: a propeptide domain, a catalytic domain and aC-terminal hemopexin-like domain (except for MMP-7 and MMP-26). Thefunction of MMPs in health and disease is regulated in multiple ways.MMPs are secreted as inactive proproteins which are activated when thepropepetide domain is cleaved by extracellular proteinases ordestabilized by protein-protein interactions. The activity of MMPs isalso regulated by tissue inhibitors of metalloproteinases (TIMPs) whichbind to the catalytic site of MMPs. The production of MMPs is alsoregulated at the level of transcription by specific signals that aretemporally limited and spatially confined. (Parks W. C. et al 2004, Nat.Rev. Immunol. 2004 4:617-629).

The collagenase subset of the matrix metalloproteinase family,comprising MMP-1 (collagenase 1), MMP-8 (collagenase 2), MMP-13(collagenase 3) and more recently MMP-14, catalyzes the initial cleavageof collagen types I, II, III, V and X (Parks W. C. et al Nat. Rev.Immunol. 2004 4:617-629). MMP-13 cleaves type II collagen moreefficiently than types I and III and is capable of cleaving multipleextracellular matrix proteins in addition to fibrillar collagens (LeemanM. F. et al Crit. Rev. Biochem. Mol. Biol. 2003 37:149-166). MMP-13 isthe most proficient catalyst of collagen type II degradation, thecommitted step in articular cartilage degradation and progressive jointdamage associated with RA and osteoarthritis (OA). In the case ofcollagen type II (90-95% of articular cartilage), the triple helix iscleaved at position G775/L776 at least an order of magnitude faster byMMP-13 than by MMP-1 and MMP-8 (Billinghurst, R. C. et al. J. Clin.Invest. 1997 99:1534-1545). Cleavage of collagen type II triple helix atposition G775/L776 by MMP-13 triggers the initial unfolding of themolecule, rendering it susceptible to catalytic degradation byadditional members of the MMP family. The superior catalytic efficiencyof MMP-13 for collagen type II degradation, coupled with inducedexpression of MMP-13 in synovial fibroblasts and chondrocytes associatedwith rheumatoid arthritis (RA) and osteoarthritis (OA) pathology, isconsistent with MMP-13 being responsible for catalyzing the committedstep in cartilage degradation associated with RA and OA (Mitchell, P. G.et al. 1996 J. Clin. Invest. 1996 97:761-768; Moore, B. A. et al,Biochim Biophys. Acta 2000 1502:307-318).

Furthermore, transient adenoviral expression of MMP-13 in mouse kneechondrocytes and synoviocytes induces a transient arthritic condition,including recruitment of inflammatory cells, and up-regulation ofinflammatory cytokine mRNA (Oronen, K. et al. 2004. Ann. Rheum. Dis. 63,656-664). Transgenic mice with a constitutively active form of humanMMP-13 in cartilage exhibit augmented cleavage of type II collagen andleading to an osteoarthritic-like phenotype with marked cartilagedegradation and synovial hyperplasia (Neuhold, L. A. et al 2001 J. Clin.Invest. 107, 35-44). These in vivo validation studies further supportthe role of MMP-13 in RA and OA pathogenesis.

BRIEF SUMMARY OF THE INVENTION

It has been found that compounds of the present invention are inhibitorsof MMP-13.

It is therefore an object of the invention to provide compounds andcompositions of the formula I as described herein below which areinhibitors of MMP-13.

It is a further object of the invention to provide methods of using andmaking compounds of the formula I which are inhibitors of MMP-13.

DETAILED DESCRIPTION OF THE INVENTION

In the broadest generic embodiment 1, there is provided a compound ofthe formula (I):

wherein:

-   R¹ is C₁-C₅ alkyl optionally substituted with 1-3 substituents    chosen from hydroxyl, C₁-C₅ alkoxy which is optionally substituted    with a carboxamido group, C₃-C₆ carbocyclyl, heterocyclyl, amino,    alkylamino, dialkylamino, aryl and heteroaryl;-   R² is C₁-C₅ alkyl, carbocycle, heterocycle, aryl or heteroaryl, each    optionally independently substituted with 1-2 substituents chosen    from amino, hydroxyl, C₁-C₅ alkoxy, oxo, aryl, C₃-C₆ carbocyclyl and    carboxyl;-   R³ is a bond, hydrogen, CH₂, —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—,    —O—CH₂—, —C(O)—NH—CH₂—, —CH₂—NH—C(O), S(O)₀₋₂—, SO₂—NH— or —NH—SO₂—;    wherein R_(a) is C₁-C₅ alkyl;-   R⁴ is C₁-C₅ alkyl, C₂-C₄ alkenyl, amino, alkylamino, dialkylamino,    arylamino, cyano, hydroxyl, halogen, nitro, C₁-C₅ thioalkyl wherein    the sulfur atom may be oxidized, C₁-C₅ alkoxyl, —O-alkoxyl,    O—CH₂-aryl, aryloxy, O—CH₂-heteroaryl, —NH—SO₂—, carbocyclyl,    heterocyclyl, aryl or heteroaryl, each optionally independently    substituted with 1-3 substituents chosen from C₁-C₅ alkyl, acyl,    amino, aryl, halogen, hydroxyl, oxo, trihaloalkyl, carboxamide and    C₁-C₅ alkoxy;-   X is N or CH    and-   Ar is a heteroaryl ring chosen from furanyl, thiazolyl, pyrazolyl,    imidazolyl, pyrrolyl, thienyl, pyridinyl, pyrimidinyl, pyridazinyl,    oxazolyl and quinolinyl, wherein each ring may be optionally    substituted with 1-2 substituents chosen from C₁-C₅ alkyl, halogen,    amino and oxo;    or a pharmaceutically acceptable salt thereof.

In another embodiment 2, there is provided a compound of the formula (I)according the embodiment described immediately above, and wherein

-   R¹ is C₁-C₅ alkyl optionally substituted with 1-3 substituents    chosen from hydroxyl, C₁-C₅ alkoxy which is optionally substituted    with a carboxamido group, C₃-C₆ carbocyclyl, amino, alkylamino and    dialkylamino;-   R² is C₁-C₅ alkyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl,    cycloheptyl, tetrahydrofuranyl, tetrahydropyranyl, piperidinyl,    phenyl, naphthyl, benzothienyl, benzofuranyl, indolyl, thienyl,    furanyl or pyrrolyl, each optionally independently substituted with    1-2 substituents chosen from hydroxyl, C₁-C₅ alkoxy, C₃-C₆    carbocyclyl, phenyl and carboxyl;-   R³ is a bond, hydrogen, —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—, —O—CH₂—,    —C(O)—NH—CH₂—, —CH₂—NH—C(O), SO₂—NH— or —NH—SO₂—;-   R⁴ is C₁-C₅ alkyl, C₂-C₄ alkenyl, amino, alkylamino, dialkylamino,    arylamino, cyano, hydroxyl, halogen, nitro, C₁-C₅ thioalkyl wherein    the sulfur atom may be oxidized, C₁-C₅ alkoxyl, —O-alkoxyl,    O—CH₂-aryl, O—CH₂-heteroaryl, aryloxy, —NH—SO₂—, cyclopropyl,    cyclobutyl, cyclopentyl, cyclohexyl, phenyl, furanyl, thienyl,    pyrrolyl, pyrazolyl, imidazolyl, pyridinyl, pyrimidinyl, pyrazinyl,    imidazopyridinyl, benzofuranyl, benzothienyl, or indolyl, each    optionally independently substituted with 1-3 substituents chosen    from C₁-C₅ alkyl, C₁-C₅ acyl, amino, phenyl, halogen, hydroxyl, oxo,    trifluoromethyl, carboxamide and C₁-C₅ alkoxy;    and-   Ar is a heteroaryl ring chosen from furanyl, thiazolyl, pyrazolyl,    imidazolyl, pyrrolyl, thienyl, pyridinyl, pyrimidinyl, pyridazinyl,    oxazolyl and quinolinyl, wherein each ring may be optionally    substituted with 1-2 substituents chosen from C₁-C₅ alkyl, halogen,    amino and oxo.

In another embodiment 3, there is provided a compound of the formula (I)according the embodiment described immediately above, and wherein

-   R¹ is C₁-C₅ alkyl optionally substituted with 1-3 substituents    chosen from hydroxyl, C₁-C₅ alkoxy optionally substituted with a    carboxamido group and C₃-C₆ cycloalkyl;-   R² is C₁-C₅ alkyl, cyclopropyl, cyclopentyl, cyclohexyl,    tetrahydropyranyl or piperidinyl, each optionally independently    substituted with 1-2 substituents chosen from hydroxyl, C₁-C₅ alkoxy    and phenyl;-   R³ is a bond, —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—, —O—CH₂—,    —C(O)—NH—CH₂—, —CH₂—NH—C(O), SO₂—NH— or —NH—SO₂—;-   R⁴ is C₁-C₅ alkyl, C₁-C₅ alkylamino, amino, C₁-C₅ dialkylamino,    phenylamino, cyano, halogen, nitro, C₁-C₅ thioalkyl wherein the    sulfur atom may be oxidized, C₁-C₅ alkoxyl, —O-alkoxyl, —NH—SO₂—,    —OCH₂-phenyl, cyclopropyl, phenyl, furanyl, thienyl, pyrazolyl,    imidazolyl, pyridinyl, pyrimidinyl, imidazopyridinyl or    benzofuranyl, each optionally independently substituted with 1-3    substituents chosen from C₁-C₅ alkyl, amino, halogen,    trifluoromethyl and C₁-C₅ alkoxy;    and-   Ar is furanyl or thiazolyl.

In another embodiment 4, there is provided a compound of the formula (I)according the embodiment described immediately above, and wherein

-   R¹ is C₁-C₅ alkyl optionally substituted with 1-2 substituents    chosen from hydroxyl and methoxy;-   R² is C₁-C₃ alkyl, cyclohexyl or tetrahydropyranyl, wherein the    alkyl group is optionally substituted with a hydroxyl;-   R³ is a bond, —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—, —O—CH₂—,    —C(O)—NH—CH₂—, or —CH₂—NH—C(O);-   R⁴ is C₁-C₅ alkyl, phenyl, furanyl, thienyl, pyrazolyl, imidazolyl,    pyridinyl, pyrimidinyl, imidazopyridinyl or benzofuranyl, each    optionally independently substituted with 1-3 substituents chosen    from C₁-C₃ alkyl and trifluoromethyl;    and-   Ar is furanyl.

In another embodiment 5, there is provided a compound of the formula (I)according to embodiment 4, wherein

-   R¹ is methyl;-   R³ is —O—CH₂—.

In another embodiment 6, there is provided a compound of the formula (I)according to embodiment 4, wherein

-   R¹ is methyl;-   R³ is —NH—C(O)—.

In another embodiment 7, there is provided a compound of the formula (I)according to embodiment 4, wherein

-   R¹ is methyl;-   R³ is —CH₂—NH—C(O)—.

In another embodiment 8, the invention provides compounds in Table Iwhich can be made in view of the general schemes, examples and methodsknown in the art.

TABLE I Name Structure N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[4-(1- methyl-1H-pyrazol-4-yl)phenyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(5-ethoxypyridin-2-yl)furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl)-5-(5-nitropyridin-2-yl)furan-2- carboxamide

5-(4-cyanophenyl)-N-{(1S)-1- cyclohexyl-2-[(2- methoxyethyl)amino]-2-oxoethyl}furan-2-carboxamide

5-(4-cyanophenyl)-N-[(1S)-2- (methylamino)-2-oxo-1-(tetrahydro-2H-pyran-4- yl)ethyl]furan-2-carboxamide

5-(4-cyanophenyl)-N-{(1S)-1- cyclohexyl-2-[(2- hydroxyethyl)amino]-2-oxoethyl}furan-2-carboxamide

5-(4-cyanophenyl)-N-{(1S)-1- cyclohexyl-2-[(2- hydroxypropyl)amino]-2-oxoethyl}furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[4-(methylsulfanyl)phenyl]furan-2- carboxamide

5-(4-cyanophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

5-(4-cyanophenyl)-N-[(1S)-1- cyclohexyl-2-{[(2S)-1-hydroxypropan-2-yl]amino}-2- oxoethyl]furan-2-carboxamide

5-(4-cyanophenyl)-N-[(1S)-1- cyclohexyl-2-{[(2S)-1-methoxypropan-2-yl]amino}-2- oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-methoxyphenyl)furan-2- carboxamide

Methyl [4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]carbamate

5-(5-Chloropyridin-2-yl)-N-[(1S)- 1-cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-ethoxyphenyl)furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-methylphenyl)furan-2-carboxamide

5-(4-cyanophenyl)-N-[(1S)-1- cyclohexyl-2-(ethylamino)-2-oxoethyl]furan-2-carboxamide

5-(4-Chloro-phenyl)-furan-2- carboxylic acid ((1S,2S)-2-methyl-1-methylcarbamoyl-butyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-ethylphenyl)furan-2-carboxamide

N-[(1S)-2-{[2-(2-amino-2- oxoethoxy)ethyl]amino}-1-cyclohexyl-2-oxoethyl]-5-(4- chlorophenyl)furan-2-carboxamide

2-(4-Methylphenyl)-thiazole-4- carboxylic acid ((1S,2R)-2-methyl-1-methylcarbamoyl-butyl)-amide

5-(4-Bromophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

5-(4-Chlorophenyl)-N-[(1S)-2- (methylamino)-2-oxo-1-(piperidin-4-yl)ethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{4-[(methylsulfonyl)amino]phenyl} furan-2-carboxamide

5-(4-Chlorophenyl)-N-[(1S)-1- cyclopentyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl)-5-(4-nitrophenyl)furan-2-carboxamide

2-(4-Chlorophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]-1,3-thiazole-4- carboxamide

5-(4-chlorophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[4-(methylsulfamoyl)phenyl]furan-2- carboxamide

5-(4-Chloro-phenyl)-furan-2- carboxylic acid ((S)-1-methylcarbamoyl-2-phenyl-ethyl)- amide

5-(4-Chloro-phenyl)-furan-2- carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide

5-(4-Cyanophenyl)-N-{(1S)-1- cyclohexyl-2-[(1-methoxypropan-2-yl)amino]-2-oxoethyl}furan-2- carboxamide

5-(4-Cyano-phenyl)-furan-2- carboxylic acid ((S)-2-hydroxy-2-methyl-1-methylcarbamoyl- propyl)-amide

5-(4-Chloro-phenyl)-furan-2- carboxylic acid ((1S,2R)-2-methyl-1-methylcarbamoyl-butyl)-amide

N-[(2S)-1-(methylamino)-4- (methylsulfonyl)-1-oxobutan-2-yl]-2-(4-methylphenyl)-1,3-thiazole-4- carboxamide

5-(5-Chloro-pyridin-2-yl)-furan-2- carboxylic acid ((1S,2R)-2-methyl-1-methylcarbamoyl-butyl)-amide

5-(4-Cyanophenyl)-N-{(1S)-1- cyclohexyl-2-[(2-methylbutan-2-yl)amino]-2-oxoethyl}furan-2- carboxamide

2-(4-Chloro-phenyl)-thiazole-4- carboxylic acid ((1S,2S)-2-methyl-1-methylcarbamoyl-butyl)-amide

2-(4-Chloro-phenyl)-thiazole-4- carboxylic acid ((1S,2R)-2-methyl-1-methylcarbamoyl-butyl)-amide

5-(4-Cyanophenyl)-N-[(1S)-1- cyclohexyl-2-{[(2R)-1-hydroxypropan-2-yl]amino}-2- oxoethyl]furan-2-carboxamide

4-(4-Bromophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]-1,3-thiazole-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(5-hydroxypyridin-2-yl)furan-2- carboxamide

2-(4-Chloro-phenyl)-thiazole-4- carboxylic acid ((S)-1-methylcarbamoyl-pentyl)-amide

2-(4-Chloro-phenyl)-thiazole-4- carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide

5-(4-Cyanophenyl)-N-[(1S)-1- cyclohexyl-2-{[1- (dimethylamino)propan-2-yl]amino}-2-oxoethyl]furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-2-phenyl-1,3-thiazole-4-carboxamide

N-[(1S)-2-(butan-2-ylamino)-1- cyclohexyl-2-oxoethyl]-5-(4-cyanophenyl)furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-1-(4-nitrophenyl)-1H-pyrazole-3- carboxamide

2-(4-Chloro-phenyl)-thiazole-4- carboxylic acid ((S)-1-methylcarbamoyl-butyl)-amide

5-[4-(Acetylamino)phenyl]-N- [(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2- carboxamide

5-(4-Cyanophenyl)-N-[(1S)-1- cyclohexyl-2-oxo-2-(propan-2-ylamino)ethyl]furan-2-carboxamide

N-[(2S)-3-(1-benzothiophen-3-yl)- 1-(methylamino)-1-oxopropan-2-yI]-2-(4-chlorophenyl)-1,3-thiazole- 4-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{4-[(methylcarbamoyl)amino]phenyl} furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(2E)-3-(2,4-difluorophenyl)prop- 2-enoyl]amino}phenyl)furan-2-carboxamide

5-(4-Chlorophenyl)-N-[(1S)-1- cyclopropyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

5-(4-Aminophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(2S)-3-cyclohexyl-1- (methylamino)-1-oxopropan-2-yl]-5-(4-nitrophenyl)furan-2- carboxamide

5-(4-Chlorophenyl)-N-[(1S)-2- (methylamino)-2-oxo-1-phenylethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[4-(1H-pyrazol-5-yl)phenyl]furan-2- carboxamide

2-(4-Chlorophenyl)-N-[(2S)-1- (methylamino)-1-oxobutan-2-yl]-1,3-thiazole-4-carboxamide

2-(4-Cyanophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]-1,3-oxazole-4- carboxamide

N-[(2S)-3-(1-benzothiophen-3-yl)- 1-(methylamino)-1-oxopropan-2-yl]-5-(4-chlorophenyl)furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl)-5-[4-(methylsulfinyl)phenyl]furan-2- carboxamide

5-(4-Cyanophenyl)-N-[(1S)-1- cyclopropyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-4-(4-methoxyphenyl)thiophene-2- carboxamide

(S)-4-Methylcarbamoyl-4-[(2-p- tolyl-thiazole-4-carbonyl)-amino]-butyric acid

5-(4-Cyanophenyl)-N-{(1S)-1- cyclohexyl-2- [(cyclopropylmethyl)amino]-2-oxoethyl}furan-2-carboxamide

5-(5-Aminopyridin-2-yl)-N-[(1S)- 1-cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(2S)-1-(methylamino)-3- (naphthalen-1-yl)-1-oxopropan-2-yl]-5-oxo-1-phenyl-4,5-dihydro- 1H-pyrazole-3-carboxamide

4-(4-Chlorophenyl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]thiophene-2-carboxamide

Methyl (2S)-{[(5-{4-[(tert- butoxycarbonyl)amino]phenyl} furan-2-yl)carbonyl]amino}(cyclohexyl) ethanoate

5-(4-Amino-3-nitrophenyl)-N- [(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2- carboxamide

4-(5-Cyanopyridin-2-yl)-N-[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]-1-methyl-1H-pyrrole-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3,4-diaminophenyl)furan-2- carboxamide

N-[(1S)-1-cyclopropyl-2- (methylamino)-2-oxoethyl]-5-[4-(6-methylimidazo[1,2-a]pyridin-2- yl)phenyl]furan-2-carboxamide

5-[4-(6-Methyl-imidazo[1,2- a]pyridin-2-yl)-phenyl]-furan-2- carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[4-(6-methylimidazo[1,2-a]pyridin-2- yl)phenyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-2-(5-hydroxypyridin-2-yl)-1,3-thiazole- 4-carboxamide

5-(5-Benzyloxy-pyridin-2-yl)- furan-2-carboxylic acid ((S)-2-hydroxy-2-methyl-1- methylcarbamoyl-propyl)-amide

5-[5-(Benzyloxy)pyridin-2-yl]-N- [(1S)-2-(methylamino)-2-oxo-1-(tetrahydro-2H-pyran-4- yl)ethyl]furan-2-carboxamide

5-[5-(Pyridin-3-ylmethoxy)- pyridin-2-yl]-furan-2-carboxylic acid((S)-cyclohexyl- methylcarbamoyl-methyl)-amide

5-[5-(Benzyloxy)pyridin-2-yl]-N- [(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(pyridin-2-ylmethoxy)pyridin-2- yl]furan-2-carboxamide

5-[5-(1-Benzofuran-2- ylmethoxy)pyridin-2-yl]-N-[(1S)-1-cyclohexyl-2-(methylamino)-2- oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(pyridin-4-ylmethoxy)pyridin-2- yl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-imidazol-4- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(6-methylpyridin-2- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-imidazol-5- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1,5-dimethyl-1H-pyrazol-3- yl)methoxy]pyridin-2-yl}furan-2-carboxamide

5-(5-Benzyloxy-pyridin-2-yl)- furan-2-carboxylic acid ((S)-cyclohexyl-methylcarbamoyl- methyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-pyrazol-3- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3-methylbenzyl)oxy]pyridin-2- yl}furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3,5-dimethylbenzyl)oxy]pyridin- 2-yl}furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1S)-1-phenylethoxy]pyridin-2- yl}furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1R)-1-phenylethoxy]pyridin-2- yl}furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-imidazol-2- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(4-methylpyridin-2- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(1H-pyrazol-5-ylmethoxy)pyridin- 2-yl]furan-2-carboxamide

5-(5-Benzyloxy-pyridin-2-yl)- furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3-methyl-1H-pyrazol-5- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(pyridin-3-ylmethoxy)pyridin-2- yl]furan-2-carboxamide

5-[5-(5-Methyl-3H-imidazol-4- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-[5-(2,5-Dimethyl-2H-pyrazol-3- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-cyclohexyl- methylcarbamoyl-methyl)-amide

5-[4-(2,5-Dimethyl-2H-pyrazol-3- ylmethoxy)-phenyl]-furan-2- carboxylicacid ((S)-cyclohexyl- methylcarbamoyl-methyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-pyrazol-5- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(2-methylpyridin-4- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3-methylpyridin-4- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

5-[5-(1,5-Dimethyl-1H-pyrazol-3- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(2,6-dimethylpyridin-4- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-(1H-imidazol-5-ylmethoxy)pyridin- 2-yl]furan-2-carboxamide

N-[(1S)-2-(methylamino)-2-oxo-1- (piperidin-4-yl)ethyl]-5-{5-[(1-methyl-1H-imidazol-4- yl)methoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1R)-1-(pyridin-4- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

5-[5-((R)-1-Phenyl-ethoxy)- pyridin-2-yl]-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1S)-1-(pyridin-2- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

5-[5-((S)-1-Phenyl-ethoxy)-pyridin- 2-yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1S)-1-(pyridin-4- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1R)-1-(pyridin-2- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[1-(pyridin-3-yl)ethoxy]pyridin-2- yl}furan-2-carboxamide

5-[5-(5-Methyl-3H-imidazol-4- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-[5-(5-Methyl-3H-imidazol-4- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid [(S)- methylcarbamoyl-(tetrahydro-pyran-4-yl)-methyl]-amide

5-[4-(5-Methyl-3H-imidazol-4- ylmethoxy)-phenyl]-furan-2- carboxylicacid [(S)- methylcarbamoyl-(tetrahydro- pyran-4-yl)-methyl]-amide

N-{4-[5-({(1S)-1-cyclohexyl-2-[(1- methoxypropan-2-yl)amino]-2-oxoethyl}carbamoyl)furan-2- yl]phenyl}-1-benzofuran-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylfuran-2- carboxamide

N-[4-(5-{[(1S)-1-cyclopropyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine-2- carboxamide

6-Methyl-N-[4-(5-{[(2S)-3-methyl- 1-(methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2- yl)phenyl]pyridine-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- {[(2S)-1-methoxypropan-2- yl]amino}-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- {[(2S)-2-hydroxypropyl]amino}-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- {[(2R)-2-hydroxypropyl]amino}-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine-2- carboxamide

N-[6-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-3-yl]-1-benzofuran-2- carboxamide

N-[6-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-3-yl]-6-methylpyridine-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-4,5-dimethylfuran-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-imidazole-4-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-imidazole-5-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylpyridine-3- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-pyrazole-5-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-3-methylfuran-2- carboxamide

N-[(1S)-1-cyclohcxyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(2-methylfuran-3- yl)carbonyl]amino}phenyl)furan-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylfuran-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methyl-1H-pyrazole-3-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-pyrazole-3-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-pyrazole-4-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]imidazo[1,2-a]pyridine-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-8-methylimidazo[1,2-a]pyridine-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-7-methylimidazo[1,2-a]pyridine-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylimidazo[1,2-a]pyridine-2-carboxamide

5-Cyano-N-[4-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]imidazo[1,2-a]pyridine-2-carboxamide

Imidazo[1,2-a]pyridine-2,6- dicarboxylic acid 6-amide 2-[(4-{5-[((S)-cyclohexyl-methylcarbamoyl- melhyl)-carbamoyl]-furan-2-yl}-phenyl)-amide]

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-benzofuran-2- carboxamide

5-{4- [(Acetylamino)methyl]phenyl}-N- [(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2- carboxamide

N-(3-{5-[((S)-Cyclohexyl- methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}-benzyl)-2- fluoro-isonicotinamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-benzofuran-2- carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]imidazo[1,2-a]pyridine-2-carboxamide

N-{[2-(5-{[(2S)-3-methyl-1- (methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2-yl)pyridin-4- yl]methyl}-2-(trifluoromethyl)pyrimidine-4- carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6-methylpyridine-2-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}pyridine-2-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6-fluoropyridine-2-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-1,5-dimethyl-1H-pyrazole-3- carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-5-methylpyridine-3-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxocthyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-4,5-dimethylfuran-2-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-5-ethylfuran-2-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-1-benzofuran-2-carboxamide

6-Methyl-N-{[2-(5-{[(2S)-3- methyl-1-(methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}pyridine-2-carboxamide

N-{[2-(5-{[(2S)-3-methyl-1- (methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2-yl)pyridin-4- yl]methyl}pyridine-2-carboxamide

6-Fluoro-N-{[2-(5-{[(2S)-3-methyl- 1-(methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2-yl)pyridin-4- yl]methyl}pyridine-2-carboxamide

5-Methyl-N-{[2-(5-{[(2S)-3- methyl-1-(methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}pyridine-3-carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-2-(trifluoromethyl)pyrimidine-4- carboxamide

1,5-Dimethyl-1H-pyrazole-3- carboxylic acid {2-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-pyridin-4-ylmethyl}-amide

4,5-Dimethyl-furan-2-carboxylic acid {2-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- pyridin-4-ylmethyl}-amide

5-Ethyl-furan-2-carboxylic acid {2- [5-((S)-2-methyl-1- methylcarbamoyl-propylcarbamoyl)-furan-2-yl]- pyridin-4-ylmethyl}-amide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyrimidine-4- carboxamide

N-{[2-(5-{[(1S)-2-(methylamino)- 2-oxo-1-(tetrahydro-2H-pyran-4-yl)ethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-2-(trifluoromethyl)pyrimidine-4- carboxamide

N-{[2-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6-(trifluoromethyl)pyridine-2- carboxamide

N-{[2-(5-{[(2S)-3-methyl-1- (methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2-yl)pyridin-4- yl]methyl}-6-(trifluoromethyl)pyridine-2- carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2 yl)benzyl]-6- (trifluoromethyl)pyridine-2-carboxamide

2-Chloro-N-[3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyrimidine-4- carboxamide

2-Chloro-N-[3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyridine-4-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3- {[(propan-2-ylcarbamoyl)amino]methyl}phenyl) furan-2-carboxamide

5-(3-{[(tert- Butylcarbamoyl)amino]methyl}phenyl)-N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{4- [(pyridin-4-ylmethyl)carbamoyl]phenyl}furan- 2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-N′-methylpyrimidine-4,6-dicarboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-5-carboxamide

N-[3-(5-{[(1S)-1-cyclohcxyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-6-methylpyridine-2- carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylpyridine-3- carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-5-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylfuran-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[3-({[(2-methylfuran-3- yl)carbonyl]amino}methyl)phenyl]furan-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylfuran-2- carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methyl-1H-pyrazole-5-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-3-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-4-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{3-[(propanoylamino)methyl]phenyl} furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3- {[(2-methylpropanoyl)amino]methyl} phenyl)furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3-{[(cyclopropylcarbonyl)amino] methyl}phenyl)furan-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyridine-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylpyridine-2- carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-4-ethylpyridine-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3- {[(furan-2-ylcarbonyl)amino]methyl}phenyl) furan-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-2- (trifluoromethyl)pyrimidine-4-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-7-methylimidazo[1,2-a]pyridine-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylimidazo[1,2-a]pyridine-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[3-({[(4,5-dimethylthiophen-2- yl)carbonyl]amino}methyl)phenyl]furan-2-carboxamide

N-[3-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1,5-dimethyl-1H-pyrazole-3-carboxamide

2-Methoxyethyl [3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl}carbamoyl}furan-2- yl)benzyl]carbamate (again should we covercarbamates?)

2-Methylpropyl [3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]carbamate

Benzyl [3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]carbamate

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-4,5-dimethylfuran-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-5-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-6-methylpyridine-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylpyridine-3- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-5-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylfuran-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[4-({[(2-methylfuran-3- yl)carbonyl]amino}methyl)phenyl]furan-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylfuran-2- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazol-3-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-4-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{4-[(propanoylamino)methyl]phenyl} furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4- {[(2-methylpropanoyl)amino]methyl} phenyl)furan-2-carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(cyclopropylcarbonyl)amino] methyl}phenyl)furan-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyridine-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylpyridine- carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-4-ethylpyridine-2- carboxamide

N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4- {[(furan-2-ylcarbonyl)amino]methyl}phenyl) furan-2-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-2- (trifluoromethyl)pyrimidine-4-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-4-carboxamide

N-[4-(5-{[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-benzofuran-2- carboxamide

N-[3-(5-{[(1S)-2-(methylamino)-2- oxo-1-(tetrahydro-2H-pyran-4-yl)ethyl]carbamoyl}-2- furyl)benzyl]-6- (trifluoromethyl)pyridine-2-carboxamide

N-[3-(5-{[(1S)-2-(methylamino)-2- oxo-1-(tetrahydro-2H-pyran-4-yl)ethyl]carbamoyl}-2- furyl)benzyl]-2- (trifluoromethyl)pyrimidine-4-carboxamide

6-Chloro-N-[3-(5-{[(1S)-2-methyl- 1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridine-2- carboxamide

6-Fluoro-N-[3-(5-{[(1S)-2-methyl- 1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridine-2- carboxamide

N-[3-(5-{[(1S)-2-hydroxy-2- methyl-1-(methylcarbamoyl)propyl]carbamoyl}- 2-furyl)benzyl]-2-(trifluoromethyl)pyrimidine-4- carboxamide

4-Trifluoromethyl-thiazole-2- carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-1-benzofuran-2- carboxamide

2-Chloro-N-[3-(5-{[(1S)-2-methyl- 1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyrimidine-4- carboxamide

5-Bromo-1-methyl-1H-pyrazole-3- carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

1-Difluoromethyl-1H-pyrazole-3- carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

6-Bromo-N-[3-(5-{[(1S)-1- cyclopropyl-2-(methylamino)-2-oxoethyl]carbamoyl}-2- furyl)benzyl]pyridine-2- carboxamide

N-[3-(5-{[(1S)-1-cyclopropyl-2- (methylamino)-2- oxoethyl]carbamoyl}-2-furyl)benzyl]-6- (trifluoromethyl)pyridine-2- carboxamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyrazine-2- carboxamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-1H- benzimidazole-2-carboxamide

1-Methyl-5-trifluoromethyl-1H- pyrazole-3-carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-benzylamide

5-{3-[(3-Trifluoromethyl- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]tetrahydro-2H- pyran-2-carboxamide

5-{3-[(4-Dimethylamino- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

5-{3-[(3-Methyl-benzoylamino)- methyl]-phenyl}-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-{3-[(4-Methoxy-benzoylamino)- methyl]-phenyl}-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-{3-[(3,4-Dimethyl- benzoylamino)-methyl]-phenyl}- furan-2-carboxylicacid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

5-{3-[(3-Cyano-benzoylamino)- methyl]-phenyl}-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-Trifluoromethyl-2H-pyrazole-3- carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

5-{3-[(3-Isopropyl-benzoylamino)- methyl]-phenyl}-furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-{3-[(3-Methoxy-benzoylamino)- methyl]-phenyl}-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-{3-[(Cyclohexanecarbonyl- amino)-methyl]-phenyl}-furan-2- carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-{3-[(4-Methyl-benzoylamino)- methyl]-phenyl}-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridazine-4- carboxamide

5-{3-[(4-Cyano-benzoylamino)- methyl]-phenyl}-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-[3-(Benzoylamino-methyl)- phenyl]-furan-2-carboxylic acid((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-{3-[(3-Dimethylamino- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

1-Methyl-N-[3-(5-{[(1S)-2-methyl- 1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-3- carboxamide

5-{3-[(3-Trifluoromethyl-4-fluoro- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

5-{3-[(4-Isopropyl-benzoylamino)- methyl]-phenyl}-furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-2- carboxamide

3-Methyl-isoxazole-5-carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

1-Methyl-N-[3-(5-{[(1S)-2-methyl- 1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-2- carboxamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoy)propyl]carbamoyl}-2-furyl)benzyl]prolinamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]tetrahydro-2H- pyran-4-carboxamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]nicotinamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]morpholine-2- carboxamide

1-methyl-N-[3-(5-{[(1S)-2-methyl- 1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-L-prolinamide

5-[3-(Aminomethyl)phenyl]-N- [(1S)-2-(methylamino)-2-oxo-1-(tetrahydro-2H-pyran-4-yl)ethyl]-2- furamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridazine-3- carboxamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-3- carboxamide

N-Methyl-N~2~-(5-{3-[({[1- methyl-3-(trifluoromethyl)-1H- pyrazol-5-yl]carbonyl}amino)methyl]phenyl}- 2-furoyl)-L-valinamide

N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]morpholine-3- carboxamide

5-[5-(4-Fluoro-phenyl)-pyridin-2- yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(4-Methyl-phenyl)-pyridin-2- yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(4-Cyano-phenyl)-pyridin-2- yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(1H-Indol-5-yl)-pyridin-2-yl]- furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(4-Ethoxy-phenyl)-pyridin-2- yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(4-Isopropoxy-phenyl)- pyridin-2-yl]-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-[5-(3-Fluoro-phenyl)-pyridin-2- yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(3,5-Difluoro-phenyl)-pyridin- 2-yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(1H-Indol-6-yl)-pyridin-2-yl]- furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[3,4′]Bipyridinyl-6-yl-furan-2- carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide

5-[3,3′]Bipyridinyl-6-yl-furan-2- carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide

5-(2′-Methyl-[3,4′]bipyridinyl-6- yl)-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

5-[5-(2-Amino-pyrimidin-5-yl)- pyridin-2-yl]-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)-amide

5-[3,4′]Bipyridinyl-6-yl-furan-2- carboxylic acid ((S)-cyclohexyl-methylcarbamoyl-methyl)-amide

5-(4′-Trifluoromethyl-biphenyl-4- yl)-furan-2-carboxylic acid ((S)-cyclohexyl-methylcarbamoyl- methyl)-amide

5-(5-Phenyl-pyridin-2-yl)-furan-2- carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide

6-(2,5-Dihydro-pyrrole-1- carbonyl)-imidazo[1,2-a]pyridine- 2-carboxylicacid 3-{5-[((S)- cyclopropyl-methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}- benzylamide

2-(3-{5-[((S)-Cyclopropyl- methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}- benzylcarbamoyl)-imidazo[1,2-a]pyridine-6-carboxylic acid

2-(3-{5-[((S)-Cyclopropyl- methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}- benzylcarbamoyl)-imidazo[1,2-a]pyridine-6-carboxylic acid benzyl ester

or a pharmaceutically acceptable salt thereof.

The following compounds in Table II are preferred MMP-13 inhibitors:

TABLE II MMP-13 Name IC₅₀ (nM)N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(2- 1methylpyridin-4-yl)methoxy]pyridin-2-yl}furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[5- 1(pyridin-4-ylmethoxy)pyridin-2-yl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1,3- 2dimethyl-1H-pyrazol-5-yl)methoxy]pyridin-2-yl}furan-2- carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[5- 2(pyridin-3-ylmethoxy)pyridin-2-yl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(2,6- 2dimethylpyridin-4-yl)methoxy]pyridin-2-yl}furan-2-carboxamideN-[3-(5-{[(1S)-2-(methylamino)-2-oxo-1-(tetrahydro-2H-pyran- 24-yl)ethyl]carbamoyl}-2-furyl)benzyl]-6-(trifluoromethyl)pyridine-2-carboxamideN-[3-(5-{[(1S)-2-(methylamino)-2-oxo-1-(tetrahydro-2H-pyran- 24-yl)ethyl]carbamoyl}-2-furyl)benzyl]-2-(trifluoromethyl)pyrimidine-4-carboxamide6-Chloro-N-[3-(5-{[(1S)-2-methyl-1- 2(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridine-2-carboxamide 6-Fluoro-N-[3-(5-{[(1S)-2-methyl-1- 2(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridine-2-carboxamide N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(3- 3methyl-1H-pyrazol-5-yl)methoxy]pyridin-2-yl}furan-2- carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(3- 3methylpyridin-4-yl)methoxy]pyridin-2-yl}furan-2-carboxamide5-[5-(Benzyloxy)pyridin-2-yl]-N-[(1S)-2-(methylamino)-2-oxo- 31-(tetrahydro-2H-pyran-4-yl)ethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1R)- 31-(pyridin-4-yl)ethoxy]pyridin-2-yl}furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1,5- 4dimethyl-1H-pyrazol-3-yl)methoxy]pyridin-2-yl}furan-2- carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 4oxoethyl]carbamoyl}furan-2-yl)benzyl]-6-methylpyridine-2- carboxamideN-[3-(5-{[(1S)-2-hydroxy-2-methyl-1- 5(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-2-(trifluoromethyl)pyrimidine-4-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[5-(1H- 6pyrazol-5-ylmethoxy)pyridin-2-yl]furan-2-carboxamide5-[5-(1-Benzofuran-2-ylmethoxy)pyridin-2-yl]-N-[(1S)-1- 6cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1- 6methyl-1H-pyrazol-5-yl)methoxy]pyridin-2-yl}furan-2- carboxamide4-Trifluoromethyl-thiazole-2-carboxylic acid 3-[5-((S)-2-methyl- 61-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]-benzylamide5-[4-(2,5-Dimethyl-2H-pyrazol-3-ylmethoxy)-phenyl]-furan-2- 6 carboxylicacid ((S)-cyclohexyl-methylcarbamoyl-methyl)-amideN-[6-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 7oxoethyl]carbamoyl}furan-2-yl)pyridin-3-yl]-6-methylpyridine-2-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 7oxoethyl]carbamoyl}furan-2-yl)benzyl]-2-(trifluoromethyl)pyrimidine-4-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 8(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-1-benzofuran-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(4- 8methylpyridin-2-yl)methoxy]pyridin-2-yl}furan-2-carboxamide2-Chloro-N-[3-(5-{[(1S)-2-methyl-1- 9(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyrimidine-4-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 9oxoethyl]carbamoyl}furan-2-yl)benzyl]pyridine-2-carboxamide5-[5-(Benzyloxy)pyridin-2-yl]-N-[(1S)-1-cyclohexyl-2- 10(methylamino)-2-oxoethyl]furan-2-carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 10oxoethyl]carbamoyl}furan-2-yl)benzyl]-5-methylfuran-2- carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 11oxoethyl]carbamoyl}furan-2-yl)benzyl]-1-benzofuran-2- carboxamide5-Bromo-1-methyl-1H-pyrazole-3-carboxylic acid 3-[5-((S)-2- 13methyl-1-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]- benzylamide1-Difluoromethyl-1H-pyrazole-3-carboxylic acid 3-[5-((S)-2- 14methyl-1-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]- benzylamide6-Methyl-N-[4-(5-{[(2S)-3-methyl-1-(methylamino)-1-oxobutan- 142-yl]carbamoyl}furan-2-yl)phenyl]pyridine-2-carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 17oxoethyl]carbamoyl}furan-2-yl)phenyl]-6-methylpyridine-2- carboxamide5-[5-(Benzyloxy)pyridin-2-yl]-N-[(1S)-1-cyclohexyl-2- 17(ethylamino)-2-oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1- 18methyl-1H-imidazol-5-yl)methoxy]pyridin-2-yl}furan-2- carboxamide5-(5-Benzyloxy-pyridin-2-yl)-furan-2-carboxylic acid ((S)-2- 18methyl-1-methylcarbamoyl-propyl)-amide5-(5-Benzyloxy-pyridin-2-yl)-furan-2-carboxylic acid ((S)-2- 18hydroxy-2-methyl-1-methylcarbamoyl-propyl)-amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[5-(1H- 19imidazol-5-ylmethoxy)pyridin-2-yl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[5- 21(pyridin-2-ylmethoxy)pyridin-2-yl]furan-2-carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-{[(2R)-2-hydroxypropyl]amino}- 222-oxoethyl]carbamoyl}furan-2-yl)phenyl]-6-methylpyridine-2- carboxamide5-[5-(4-Cyano-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 22((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-[3,4′]Bipyridinyl-6-yl-furan-2-carboxylic acid ((S)-cyclohexyl- 23methylcarbamoyl-methyl)-amide5-(3,4′-Bipyridin-6-yl)-N-[(1S)-1-cyclohexyl-2-(methylamino)-2- 23oxoethyl]furan-2-carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-{[(2S)-2-hydroxypropyl]amino}- 232-oxoethyl]carbamoyl}furan-2-yl)phenyl]-6-methylpyridine-2- carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 24oxoethyl]carbamoyl}furan-2-yl)benzyl]-1-methyl-1H-pyrazole-3-carboxamide N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 24oxoethyl]carbamoyl}furan-2-yl)phenyl]imidazo[1,2-a]pyridine-2,6-dicarboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1- 25methyl-1H-pyrazol-3-yl)methoxy]pyridin-2-yl}furan-2- carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[4-(1- 25methyl-1H-pyrazol-4-yl)phenyl]furan-2-carboxamide5-[4-(5-Methyl-3H-imidazol-4-ylmethoxy)-phenyl]-furan-2- 27 carboxylicacid [(S)-methylcarbamoyl-(tetrahydro-pyran-4-yl)- methyl]-amide6-Bromo-N-[3-(5-{[(1S)-1-cyclopropyl-2-(methylamino)-2- 27oxoethyl]carbamoyl}-2-furyl)benzyl]pyridine-2-carboxamideN-[3-(5-{[(1S)-1-cyclopropyl-2-(methylamino)-2- 29oxoethyl]carbamoyl}-2-furyl)benzyl]-6-(trifluoromethyl)pyridine-2-carboxamide5-[5-(5-Methyl-3H-imidazol-4-ylmethoxy)-pyridin-2-yl]-furan-2- 29carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-[5-(4-Isopropoxy-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 29((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 30oxoethyl]carbamoyl}furan-2-yl)benzyl]-5-methylpyridine-3- carboxamideN-[6-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 30oxoethyl]carbamoyl}furan-2-yl)pyridin-3-yl]-1-benzofuran-2- carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 31oxoethyl]carbamoyl}furan-2-yl)phenyl]-1-methyl-1H-pyrazole-3-carboxamide N-[4-(5-{[(1S)-1-cyclohexyl-2-{[(2S)-1-methoxypropan-2- 32yl]amino}-2-oxoethyl]carbamoyl}furan-2-yl)phenyl]-6-methylpyridine-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(5- 32ethoxypyridin-2-yl)furan-2-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 32(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyrazine-2-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 33(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-1H-benzimidazole-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(3- 36methylbenzyl)oxy]pyridin-2-yl}furan-2-carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 38oxoethyl]carbamoyl}furan-2-yl)benzyl]-4-ethylpyridine-2- carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(6- 39methylpyridin-2-yl)methoxy]pyridin-2-yl}furan-2-carboxamide1-Methyl-5-trifluoromethyl-1H-pyrazole-3-carboxylic acid 3-[5- 39((S)-2-methyl-1-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]-benzylamide N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1R)-41 1-phenylethoxy]pyridin-2-yl}furan-2-carboxamide5-[5-(4-Ethoxy-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 47((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-{3-[(3-Trifluoromethyl-benzoylamino)-methyl]-phenyl}-furan- 492-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[3-({[(4,5- 50dimethylthiophen-2-yl)carbonyl]amino}methyl)phenyl]furan-2- carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 57oxoethyl]carbamoyl}furan-2-yl)phenyl]-5-methylfuran-2- carboxamide5-[3,4′]Bipyridinyl-6-yl-furan-2-carboxylic acid ((S)-2-methyl-1- 62methylcarbamoyl-propyl)-amideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 63oxoethyl]carbamoyl}furan-2-yl)phenyl]-4,5-dimethylfuran-2- carboxamideN-[4-(5-{[(1S)-1-cyclopropyl-2-(methylamino)-2- 69oxoethyl]carbamoyl}furan-2-yl)phenyl]-6-methylpyridine-2- carboxamide5-(5-Cyanopyridin-2-yl)-N-[(1S)-1-cyclohexyl-2-(methylamino)- 692-oxoethyl]furan-2-carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 72oxoethyl]carbamoyl}furan-2-yl)benzyl]-1,5-dimethyl-1H-pyrazole-3-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1R)- 731-phenylethoxy]pyridin-2-yl}furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(5- 74nitropyridin-2-yl)furan-2-carboxamide5-(4-Cyanophenyl)-N-{(1S)-1-cyclohexyl-2-[(2- 74methoxyethyl)amino]-2-oxoethyl}furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(3- 75{[(furan-2-ylcarbonyl)amino]methyl}phenyl)furan-2- carboxamide5-[5-(4-Fluoro-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 78((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-[(5-Phenyl)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2- 79methyl-1-methylcarbamoyl-propyl)-amide5-[5-(1,5-Dimethyl-1H-pyrazol-3-ylmethoxy)-pyridin-2-yl]- 80furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 87oxoethyl]carbamoyl}furan-2-yl)phenyl]-5-methyl-1H-pyrazole-3-carboxamide 5-(4-Cyanophenyl)-N-[(1S)-2-(methylamino)-2-oxo-1- 90(tetrahydro-2H-pyran-4-yl)ethyl]furan-2-carboxamide5-[5-(1H-Indol-6-yl)-pyridin-2-yl]-furan-2-carboxylic acid ((S)- 912-methyl-1-methylcarbamoyl-propyl)-amideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 93oxoethyl]carbamoyl}furan-2-yl)phenyl]-3-methylfuran-2- carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 99oxoethyl]carbamoyl}furan-2-yl)phenyl]-1-methyl-1H-pyrazole-5-carboxamide N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 99oxoethyl]carbamoyl}furan-2-yl)phenyl]-8-methylimidazo[1,2-a]pyridine-2-carboxamide 5-(4-Cyanophenyl)-N-{(1S)-1-cyclohexyl-2-[(2-100 hydroxyethyl)amino]-2-oxoethyl}furan-2-carboxamideN-[3-(5-{[(1S)-2-methyl-1- 101(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]tetrahydro-2H-pyran-2-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2-102 oxoethyl]carbamoyl}furan-2-yl)benzyl]imidazo[1,2-a]pyridine-2-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 103oxoethyl]carbamoyl}furan-2-yl)benzyl]-3-methylpyridine-2- carboxamide5-Cyano-N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 103oxoethyl]carbamoyl}furan-2-yl)phenyl]imidazo[1,2-a]pyridine-2-carboxamide 5-(3-{[(tert-butylcarbamoyl)amino]methyl}phenyl)-N-[(1S)-1-105 cyclohexyl-2-(methylamino)-2-oxoethyl]furan-2-carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 109oxoethyl]carbamoyl}furan-2-yl)phenyl]imidazo[1,2-a]pyridine-2-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 110oxoethyl]carbamoyl}furan-2-yl)benzyl]-5-methylimidazo[1,2-a]pyridine-2-carboxamide5-(2′-Methyl-[3,4′]bipyridinyl-6-yl)-furan-2-carboxylic acid ((S)- 1102-methyl-1-methylcarbamoyl-propyl)-amide5-{3-[(4-Dimethylamino-benzoylamino)-methyl]-phenyl}-furan- 1102-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(3,5- 115dimethylbenzyl)oxy]pyridin-2-yl}furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1- 119methyl-1H-imidazol-4-yl)methoxy]pyridin-2-yl}furan-2- carboxamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 123oxoethyl]carbamoyl}furan-2-yl)benzyl]-3-methyl-1H-pyrazole-5-carboxamide 5-{3-[(3-Methyl-benzoylamino)-methyl]-phenyl}-furan-2- 132carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 137oxoethyl]carbamoyl}furan-2-yl)benzyl]-1-methyl-1H-pyrazole-4-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 137oxoethyl]carbamoyl}furan-2-yl)benzyl]-7-methylimidazo[1,2-a]pyridine-2-carboxamide N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2-140 oxoethyl]carbamoyl}furan-2-yl)phenyl]-1-methyl-1H-imidazole-4-carboxamide 5-[3,3′]Bipyridinyl-6-yl-furan-2-carboxylic acid((S)-2-methyl-1- 140 methylcarbamoyl-propyl)-amideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 143oxoethyl]carbamoyl}furan-2-yl)benzyl]-1-methyl-1H-pyrazole-5-carboxamide N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 150oxoethyl]carbamoyl}furan-2-yl)phenyl]-5-methylpyridine-3- carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 150oxoethyl]carbamoyl}furan-2-yl)phenyl]-5-methylimidazo[1,2-a]pyridine-2-carboxamide5-{3-[(4-Methoxy-benzoylamino)-methyl]-phenyl}-furan-2- 155 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-{3-[(3,4-Dimethyl-benzoylamino)-methyl]-phenyl}-furan-2- 156carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(3-{[(2- 157methylpropanoyl)amino]methyl}phenyl)furan-2-carboxamide5-{3-[(3-Cyano-benzoylamino)-methyl]-phenyl}-furan-2- 160 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-Trifluoromethyl-2H-pyrazole-3-carboxylic acid 3-[5-((S)-2- 160methyl-1-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]- benzylamide5-{3-[(3-Isopropyl-benzoylamino)-methyl]-phenyl}-furan-2- 160 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-{3-[(3-Methoxy-benzoylamino)-methyl]-phenyl}-furan-2- 163 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[(1S)-2-(methylamino)-2-oxo-1-(piperidin-4-yl)ethyl]-5-{5- 163[(1-methyl-1H-imidazol-4-yl)methoxy]pyridin-2-yl}furan-2- carboxamide5-{3-[(Cyclohexanecarbonyl-amino)-methyl]-phenyl}-furan-2- 165carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-(4-cyanophenyl)-N-{(1S)-1-cyclohexyl-2-[(2- 170hydroxypropyl)amino]-2-oxoethyl}furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[4- 175(methylsulfanyl)phenyl]furan-2-carboxamide5-(4-Cyanophenyl)-N-[(1S)-1-cyclohexyl-2-(methylamino)-2- 175oxoethyl]furan-2-carboxamide5-{3-[(4-Methyl-benzoylamino)-methyl]-phenyl}-furan-2- 175 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[3-(5-{[(1S)-2-methyl-1- 180(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridazine-4-carboxamide N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 180oxoethyl]carbamoyl}furan-2-yl)phenyl]-1-methyl-1H-pyrazole-4-carboxamide N-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 180oxoethyl]carbamoyl}furan-2-yl)benzyl]-3-methylfuran-2- carboxamide5-[5-(4-Methyl-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 180((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-{3-[(4-Cyano-benzoylamino)-methyl]-phenyl}-furan-2- 185 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-(4-Cyanophenyl)-N-[(1S)-1-cyclohexyl-2-{[(2S)-1- 195hydroxypropan-2-yl]amino}-2-oxoethyl]furan-2-carboxamide5-(4-Cyanophenyl)-N-[(1S)-1-cyclohexyl-2-{[(2S)-1- 195methoxypropan-2-yl]amino}-2-oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(3- 205{[(propan-2-ylcarbamoyl)amino]methyl}phenyl)furan-2- carboxamide5-[(3-Benzoylamino-methyl)-phenyl]-furan-2-carboxylic acid 205((S)-2-methyl-1-methylcarbamoyl-propyl)-amide5-{3-[(3-Dimethylamino-benzoylamino)-methyl]-phenyl}-furan- 2132-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide1-Methyl-N-[3-(5-{[(1S)-2-methyl-1- 215(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-3-carboxamide 5-{3-[(4-Fluoro-3-trifuoromethyl-benzoylamino)-methyl]-215 phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(4- 215methoxyphenyl)furan-2-carboxamide Methyl[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 225oxoethyl]carbamoyl}furan-2-yl)phenyl]carbamate5-{3-[(4-Isopropyl-benzoylamino)-methyl]-phenyl}-furan-2- 225 carboxylicacid ((S)-2-methyl-1-methylcarbamoyl-propyl)-amide 2-Methylpropyl[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 240oxoethyl]carbamoyl}furan-2-yl)benzyl]carbamate5-(5-Chloropyridin-2-yl)-N-[(1S)-1-cyclohexyl-2-(methylamino)- 2452-oxoethyl]furan-2-carboxamide5-[5-(1H-Indol-5-yl)-pyridin-2-yl]-furan-2-carboxylic acid ((S)- 2602-methyl-1-methylcarbamoyl-propyl)-amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(4- 270ethoxyphenyl)furan-2-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 270(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-2-carboxamide 3-Methyl-isoxazole-5-carboxylic acid 3-[5-((S)-2-methyl-1-280 methylcarbamoyl-propylcarbamoyl)-furan-2-yl]-benzylamide5-{4-[(Acetylamino)methyl]phenyl}-N-[(1S)-1-cyclohexyl-2- 285(methylamino)-2-oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(4- 290methylphenyl)furan-2-carboxamide5-(4-Cyanophenyl)-N-[(1S)-1-cyclohexyl-2-(ethylamino)-2- 295oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{5-[(1S)-1- 295phenylethoxy]pyridin-2-yl}furan-2-carboxamide5-(4-Chloro-phenyl)-furan-2-carboxylic acid ((1S,2S)-2-methyl- 3001-methylcarbamoyl-butyl)-amide 1-Methyl-N-[3-(5-{[(1S)-2-methyl-1- 300(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-2-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 305(methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]prolinamideN-[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 313oxoethyl]carbamoyl}furan-2-yl)benzyl]-1-methyl-1H-imidazole-2-carboxamide N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(4- 315ethylphenyl)furan-2-carboxamideN-[(1S)-2-{[2-(2-amino-2-oxoethoxy)ethyl]amino}-1- 325cyclohexyl-2-oxoethyl]-5-(4-chlorophenyl)furan-2-carboxamide5-[5-(3-Fluoro-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 325((S)-2-methyl-1-methylcarbamoyl-propyl)-amideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[3-({[(2- 330methylfuran-3-yl)carbonyl]amino}methyl)phenyl]furan-2- carboxamideN-[3-(5-{[(1S)-2-methyl-1- 337(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]tetrahydro-2H-pyran-4-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 355(methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]nicotinamideN-{4-[5-({(1S)-1-cyclohexyl-2-[(1-methoxypropan-2-yl)amino]- 3552-oxoethyl}carbamoyl)furan-2-yl]phenyl}-1-benzofuran-2- carboxamide5-[5-(3,5-Difluoro-phenyl)-pyridin-2-yl]-furan-2-carboxylic acid 370((S)-2-methyl-1-methylcarbamoyl-propyl)-amide N-[3-(5-{[(1S)-2-methyl-1-370 (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]morpholine-2-carboxamide5-(4′-Trifluoromethyl-biphenyl-4-yl)-furan-2-carboxylic acid 373(cyclohexyl-methylcarbamoyl-methyl)-amide1-Methyl-N-[3-(5-{[(1S)-2-methyl-1- 380(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-L- prolinamide5-[5-(2-Amino-pyrimidin-5-yl)-pyridin-2-yl]-furan-2-carboxylic 380 acid((S)-2-methyl-1-methylcarbamoyl-propyl)-amide2-(4-Chloro-phenyl)-thiazole-4-carboxylic acid ((1S,2S)-2- 380methyl-1-methylcarbamoyl-butyl)-amide5-(4-bromophenyl)-N-[(1S)-1-cyclohexyl-2-(methylamino)-2- 395oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(3- 397{[(cyclopropylcarbonyl)amino]methyl}phenyl)furan-2- carboxamide2-methoxyethyl [3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 397oxoethyl]carbamoyl}furan-2-yl)benzyl]carbamate5-[5-(5-Methyl-3H-imidazol-4-ylmethoxy)-pyridin-2-yl]-furan-2- 415carboxylic acid [(S)-methylcarbamoyl-(tetrahydro-pyran-4-yl)-methyl]-amide 5-[3-(Aminomethyl)phenyl]-N-[(1S)-2-(methylamino)-2-oxo-1-415 (tetrahydro-2H-pyran-4-yl)ethyl]-2-furamideN-[3-(5-{[(1S)-2-methyl-1- 420(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]pyridazine-3-carboxamide N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(4- 423{[(cyclopropylcarbonyl)amino]methyl}phenyl)furan-2- carboxamide5-(4-Chlorophenyl)-N-[(1S)-2-(methylamino)-2-oxo-1- 430(piperidin-4-yl)ethyl]furan-2-carboxamide N-[3-(5-{[(1S)-2-methyl-1- 430(methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]piperidine-3-carboxamide N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-{4- 455[(methylsulfonyl)amino]phenyl}furan-2-carboxamide5-(4-Chlorophenyl)-N-[(1S)-1-cyclopentyl-2-(methylamino)-2- 465oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(4- 470nitrophenyl)furan-2-carboxamide2-(4-Chlorophenyl)-N-[(1S)-1-cyclohexyl-2-(methylamino)-2- 470oxoethyl]-1,3-thiazole-4-carboxamide5-(4-Chlorophenyl)-N-[(1S)-1-cyclohexyl-2-(methylamino)-2- 475oxoethyl]furan-2-carboxamideN-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-[4- 480(methylsulfamoyl)phenyl]furan-2-carboxamideN-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2- 496oxoethyl]carbamoyl}furan-2-yl)phenyl]-1-benzofuran-2- carboxamide

In all the compounds disclosed hereinabove in this application, in theevent the nomenclature is in conflict with the structure, it shall beunderstood that the compound is defined by the structure.

The invention also relates to pharmaceutical preparations, containing asactive substance one or more compounds of the invention, or thepharmaceutically acceptable derivatives thereof, optionally combinedwith conventional excipients and/or carriers.

Compounds of the invention also include their isotopically-labelledforms. An isotopically-labelled form of an active agent of a combinationof the present invention is identical to said active agent but for thefact that one or more atoms of said active agent have been replaced byan atom or atoms having an atomic mass or mass number different from theatomic mass or mass number of said atom which is usually found innature. Examples of isotopes which are readily available commerciallyand which can be incorporated into an active agent of a combination ofthe present invention in accordance with well established procedures,include isotopes of hydrogen, carbon, nitrogen, oxygen, phosphorous,fluorine and chlorine, e.g., ²H, ³H, ¹³C, ¹⁴C, ¹⁵N, ¹⁸O, ¹⁷O, ³¹P, ³²P,³⁵S, ¹⁸F, and ³⁶Cl, respectively. An active agent of a combination ofthe present invention, a prodrug thereof, or a pharmaceuticallyacceptable salt of either which contains one or more of theabove-mentioned isotopes and/or other isotopes of other atoms iscontemplated to be within the scope of the present invention.

The invention includes the use of any compounds of described abovecontaining one or more asymmetric carbon atoms may occur as racematesand racemic mixtures, single enantiomers, diastereomeric mixtures andindividual diastereomers. Isomers shall be defined as being enantiomersand diastereomers. All such isomeric forms of these compounds areexpressly included in the present invention. Each stereogenic carbon maybe in the R or S configuration, or a combination of configurations.

Some of the compounds of the invention can exist in more than onetautomeric form. The invention includes methods using all suchtautomers.

All terms as used herein in this specification, unless otherwise stated,shall be understood in their ordinary meaning as known in the art. Forexample, “C₁₋₄alkoxy” is a C₁₋₄alkyl with a terminal oxygen, such asmethoxy, ethoxy, propoxy, butoxy. All alkyl, alkenyl and alkynyl groupsshall be understood as being branched or unbranched where structurallypossible and unless otherwise specified. Other more specific definitionsare as follows:

Carbocycles include hydrocarbon rings containing from three to twelvecarbon atoms. These carbocycles may be either aromatic or non-aromaticring systems. The non-aromatic ring systems may be mono- orpolyunsaturated. Preferred carbocycles include but are not limited tocyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl,cyclohexenyl, cycloheptanyl, cycloheptenyl, phenyl, indanyl, indenyl,benzocyclobutanyl, dihydronaphthyl, tetrahydronaphthyl, naphthyl,decahydronaphthyl, benzocycloheptanyl and benzocycloheptenyl. Certainterms for cycloalkyl such as cyclobutanyl and cyclobutyl shall be usedinterchangeably.

The term “heterocycle” refers to a stable nonaromatic 4-8 membered (butpreferably, 5 or 6 membered) monocyclic or nonaromatic 8-11 memberedbicyclic or spirocyclic heterocycle radical which may be eithersaturated or unsaturated. Each heterocycle consists of carbon atoms andone or more, preferably from 1 to 4 heteroatoms chosen from nitrogen,oxygen and sulfur. The heterocycle may be attached by any atom of thecycle, which results in the creation of a stable structure.

The term “heteroaryl” shall be understood to mean an aromatic 5-8membered monocyclic or 8-11 membered bicyclic ring containing 1-4heteroatoms such as N, O and S.

Unless otherwise stated, heterocycles and heteroaryl include but are notlimited to, for example azatidinyl, furanyl, pyranyl, benzoxazolyl,benzothiazolyl, benzimidazolyl, tetrahydropyranyl, dioxanyl,tetrahydrofuranyl, oxazolyl, isoxazolyl, thiazolyl, pyrazolyl,tetrazolyl, pyrrolyl, pyrrolidinyl, pyrrolidinone, imidazolyl, thienyl,thiadiazolyl, oxadiazolyl, thiomorpholinyl,1,1-dioxo-1λ⁶-thiomorpholinyl, morpholinyl, pyridinyl, pyridinone,1-oxy-pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, triazinyl,pyrrolidinyl, piperidinyl, piperazinyl, purinyl, quinolinyl,dihydro-2H-quinolinyl, tetrahydroquinolinyl, isoquinolinyl,quinazolinyl, indazolyl, indolyl, indolinone, isoindolyl, benzofuranyl,benzopyranyl and benzodioxolyl.

The term “heteroatom” as used herein shall be understood to mean atomsother than carbon such as O, N, S and P.

In all alkyl groups or carbon chains one or more carbon atoms can beoptionally replaced by heteroatoms: O, S or N, it shall be understoodthat if N is not substituted then it is NH, it shall also be understoodthat the heteroatoms may replace either terminal carbon atoms orinternal carbon atoms within a branched or unbranched carbon chain. Suchgroups can be substituted as herein above described by groups such asoxo to result in definitions such as but not limited to: alkoxycarbonyl,acyl, amido and thioxo.

The term “aryl” as used herein shall be understood to mean aromaticcarbocycle or heteroaryl as defined herein. Each aryl or heteroarylunless otherwise specified includes it's partially or fully hydrogenatedderivative. For example, quinolinyl may include decahydroquinolinyl andtetrahydroquinolinyl, naphthyl may include its hydrogenated derivativessuch as tetrahydranaphthyl. Other partially or fully hydrogenatedderivatives of the aryl and heteroaryl compounds described herein willbe apparent to one of ordinary skill in the art.

As used herein, “nitrogen” and “sulfur” include any oxidized form ofnitrogen and sulfur and the quaternized form of any basic nitrogen. Forexample, for an —S—C₁₋₆ alkyl radical, unless otherwise specified, thisshall be understood to include —S(O)—C₁₋₆ alkyl and —S(O)₂—C₁₋₆ alkyl.

The term “alkyl” refers to a saturated aliphatic radical containing fromone to ten carbon atoms or a mono- or polyunsaturated aliphatichydrocarbon radical containing from two to twelve carbon atoms. Themono- or polyunsaturated aliphatic hydrocarbon radical containing atleast one double or triple bond, respectively. “Alkyl” refers to bothbranched and unbranched alkyl groups. It should be understood that anycombination term using an “alk” or “alkyl” prefix refers to analogsaccording to the above definition of “alkyl”. For example, terms such as“alkoxy”, “alkylhio” refer to alkyl groups linked to a second group viaan oxygen or sulfur atom. “Alkanoyl” (or acyl) refers to an alkyl grouplinked to a carbonyl group (C═O).

The term “halogen” as used in the present specification shall beunderstood to mean bromine, chlorine, fluorine or iodine, preferablyfluorine. The definitions “halogenated”, “partially or fullyhalogenated”; partially or fully fluorinated; “substituted by one ormore halogen atoms”, includes for example, mono, di or tri haloderivatives on one or more carbon atoms. For alkyl, a nonlimitingexample would be —CH₂CHF₂, —CF₃ etc.

Each alkyl (or any term using an “alk” or “alkyl” prefix), carbocycle,heterocycle or heteroaryl, or the analogs thereof, described hereinshall be understood to be optionally partially or fully halogenated.

The compounds of the invention are only those which are contemplated tobe ‘chemically stable’ as will be appreciated by those skilled in theart. For example, a compound which would have a ‘dangling valency’, or a‘carbanion’ are not compounds contemplated by the inventive methodsdisclosed herein.

The invention includes pharmaceutically acceptable derivatives ofcompounds of formula (I). A “pharmaceutically acceptable derivative”refers to any pharmaceutically acceptable salt or ester, or any othercompound which, upon administration to a patient, is capable ofproviding (directly or indirectly) a compound useful for the invention,or a pharmacologically active metabolite or pharmacologically activeresidue thereof. A pharmacologically active metabolite shall beunderstood to mean any compound of the invention capable of beingmetabolized enzymatically or chemically. This includes, for example,hydroxylated or oxidized derivative compounds of the invention.

Pharmaceutically acceptable salts include those derived frompharmaceutically acceptable inorganic and organic acids and bases.Examples of suitable acids include hydrochloric, hydrobromic, sulfuric,nitric, perchloric, fumaric, maleic, phosphoric, glycolic, lactic,salicylic, succinic, toluene-p-sulfuric, tartaric, acetic, citric,methanesulfonic, formic, benzoic, malonic, naphthalene-2-sulfuric andbenzenesulfonic acids. Other acids, such as oxalic acid, while notthemselves pharmaceutically acceptable, may be employed in thepreparation of salts useful as intermediates in obtaining the compoundsand their pharmaceutically acceptable acid addition salts. Salts derivedfrom appropriate bases include alkali metal (e.g., sodium), alkalineearth metal (e.g., magnesium), ammonium and N—(C1-C4 alkyl)-4+ salts.

In addition, within the scope of the invention is use of prodrugs ofcompounds of the invention. Prodrugs include those compounds that, uponsimple chemical transformation, are modified to produce compounds of theinvention. Simple chemical transformations include hydrolysis, oxidationand reduction. Specifically, when a prodrug is administered to apatient, the prodrug may be transformed into a compound disclosedhereinabove, thereby imparting the desired pharmacological effect.

The compounds of formula I may be made using the general syntheticmethods described below, which also constitute part of the invention.

GENERAL SYNTHETIC METHODS

The invention also provides processes for making compounds of Formula(I). In all Schemes, unless specified otherwise, R¹, R², R³, R⁴, Ar andX in the formulas below shall have the meaning of R¹, R², R³, R⁴, Ar andX in Formula (I) of the invention described herein above.

Optimum reaction conditions and reaction times may vary depending on theparticular reactants used. Unless otherwise specified, solvents,temperatures, pressures, and other reaction conditions may be readilyselected by one of ordinary skill in the art. Specific procedures areprovided in the Synthetic Examples section. Typically, reaction progressmay be monitored by thin layer chromatography (TLC), if desired, andintermediates and products may be purified by chromatography on silicagel and/or by recrystallization.

The appropriately substituted starting materials and intermediates usedin the preparation of compounds of the invention are either commerciallyavailable or readily prepared by methods known in the literature tothose skilled in the art, and are illustrated in the synthetic examplesbelow.

Compounds of Formula (I) may be synthesized by methods outlined inSchemes 1-4.

As shown in scheme 1, reaction of an amino acid of formula (II), whereinQ is an amine protecting group such as BOC, with an amine of formula(III), under standard amide coupling conditions, provides an amide offormula (IV). Deprotection of the intermediate (IV), under standardconditions, provides a free amine of formula (V). Coupling the amine offormula (V) with an acid of formula (VI), under standard conditions,provides the corresponding coupled product of formula (VII). Reducingthe nitro group, in a suitable solvent, under standard conditions,provides an amine of formula (VIII). Coupling the amine of formula(VIII) with an acid of formula (IX), under standard amide couplingconditions, provides a compound of formula (I), wherein R³=—C(O)—NH—.

As outlined in scheme 2, reaction of a bromo compound of formula (X)with a boronic acid/ester of formula (XI), in a suitable solvent, in thepresence of a suitable base and catalyst, provides the correspondingcoupled product which upon oxidation with a suitable reagent, providesan acid of formula (XII). Reaction of the acid of formula (XII) with anamine of formula (V) under standard amide coupling reaction conditions,provides a compound of formula (XIII). Removal of the benzyloxy groupfrom compound (XIII), in a suitable solvent, in the presence of asuitable catalyst, provides the hydroxyl compound of formula (XIV).Reaction of the hydroxyl compound of formula (XIV) with an alcohol offormula (XV), in a suitable solvent, in the presence of a reagent suchas diisopropyl azodicarboxylate (DIAD) and triphenylphosphine, providesa compound of Formula (I), wherein R³=—CH₂—O—

As shown in scheme 3, reaction of a bromo compound of formula (XVI) witha boronic acid/ester of formula (XVII), wherein Q is an amine protectinggroup such as BOC, in a suitable solvent, in the presence of a suitablebase and catalyst, provides the corresponding coupled product of formula(XVIII). Deprotection of the amine protecting group, under standardconditions, provides the free amine of formula (XIX). Reaction of theamine of formula (XIX) with an acid of formula (XX), under standardamide coupling reaction conditions, provides a compound of Formula (I),wherein R³=—C(O)—NH—CH₂—. Reaction of the amine of formula (XIX) with anisocyanate of formula (XXI), under standard urea forming reactionconditions, provides a compound of Formula (I), whereinR³=—N—C(O)—NH—CH₂—. Reaction of the amine of formula (XIX) with achloroformate of formula (XXII), under standard carbamate formationreaction conditions, provides a compound of Formula (I), whereinR³=—O—C(O)—NH—CH₂—.

As outlined in scheme 4, reaction of hydroxy compound of formula (XXI)with trifluormethanesulfonic anhydride under standard protectionconditions provides a compound of formula (XXII). Reaction of thetriflate (XXII) with a boronic acid/ester in a suitable solvent, in thepresence of a suitable base and catalyst, provides a compound of Formula(I), wherein R³=bond and R⁴=Ar′.

Further modification of the initial product of Formula (I) by methodsknown in the art and illustrated in the Examples below, may be used toprepare additional compounds of this invention.

EXAMPLE 1 5-[5-(Pyridin-3-ylmethoxy)-pyridin-2-yl]-furan-2-carboxylicacid ((S)-cyclohexyl-methylcarbamoyl-methyl)-amide

Step 1:

To a solution of 2-Bromo 5-hydroxypyridine (5 g, 29 mmol) in acetone(100 mL), is added K₂CO₃ (7.9 g, 58 mmol.) followed by benzyl bromide(5.1 mL, 43 mmol). The resulting suspension is heated at 70° C. for 2hours. The solution is then diluted with water, and the acetone removedin vacuo. The aqueous phase is extracted with ethyl acetate, and thecombined organic extracts are washed with brine, dried over Na₂SO₄ andconcentrated in vacuo. The resulting residue is purified on silica withhexanes/ethyl acetate as the eluent, 6.4 g, 85%, LC/MS ESI m/z(M+H)+=266.3.

Step 2:

2-furaldehyde 4-boronic acid (10.2 g, 73 mmol),palladiumtetrakistriphenylphosphine (2.9 g, 2 4 mmol) and5-benzyloxy-2-bromo-pyridine (6.4 g, 24 mmol) are diluted with anaqueous sodium carbonate solution (30 mL, 61 mmol), 1,2-dimethyoxethane(120 mL) and then degassed with argon over 5 minutes. The solution isheated to reflux (94° C.) overnight under argon. Upon cooling, thereaction mixture is diluted with ethyl acetate and water, and theaqueous phase is extracted with copious amounts of ethyl acetate. Thecombined organic extracts are washed with brine and concentrated invacuo. The resulting residue is purified on silica with hexanes/ethylacetate as the eluent to give an yellow solid, 3.1 g, 46%, LC/MS ESI m/z(M+H)⁺=280.4.

Step 3:

To a solution of 5-(5-benzyloxy-pyridin-2-yl)-furan-2-carbaldehyde (4.4g, 14 mmol) in 1,4-dioxane (160 mL) is added sodium phosphate(monobasic, 7.7 g, 56 mmol) in water (30 mL), followed by sulfamic acid(2.1 g, 22 mmol). The reaction mixture is cooled to 0° C., and sodiumchlorite (3.27 g, 80%, 29 mmol) in water (30 mL) is added over a 10minute period at 0° C. The ice bath is removed and the solution stirredfor 30 minutes. Excess sodium sulfite is added and resulting suspensionis stirred for 30 minutes. The reaction mixture is acidified with 2 NHCl (pH=4) and extracted with ethyl acetate (2×100 mL). The combinedorganic layers are washed with brine, dried over MgSO₄, filtered, andthe solvent is evaporated in vacuo. The product is obtained as a darkyellow-brown solid, and used without further purification, 4.0 g, 94%,LC/MS ESI m/z (M+H)⁺=296.6.

Step 4:

5-(5-Benzyloxy-pyridin-2-yl)-furan-2-carboxylate (4.4 g, 15 mmol) isdissolved in DMF (150 mL) and TBTU (9.7 g, 30 mmol),diisopropylethylamine (16 mL, 91 mmol), and(S)-2-Amino-2-cyclohexyl-N-methyl-acetamide (6.4 g, 22 mmol) are added.The reaction is capped and stirred at room temperature for 5 hours. Thereaction is quenched with excess water, and the product extracted intoethyl acetate. The combined organic layers are washed with water, dried(sodium sulfate), filtered, and evaporated in vacuo to give an oil. Thecrude material is purified on silica gel with methanol/dichloromethaneas the eluent to yield brown solid, 4.3 g, 64%, LC/MS ESI m/z(M+H)⁺=448.7.

Step 5:

To a solution of 5-(5-benzyloxy-pyridin-2-yl)-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide (1.43 g, 2.8 mmol) inethyl acetate (26 mL) and methanol (26 mL) is added 10% Pd/C (277 mg,0.26 mmol). The reaction is purged with argon, and 1,4-cyclohexadiene(2.4 mL, 26 mmol) is added via syringe. The reaction mixture is heatedto reflux for 2 hours, cooled to room temperature, filtered through apad of celite, and the pad rinsed with ethyl acetate. The resultingfiltrate is evaporated in vacuo to give light yellow solid that is usedwithout further purification, 1.06 g, 95%, LC/MS ESI m/z (M+H)+=358.4.

Step 6.

To a solution of 5-(5-hydroxy-pyridin-2-yl)-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide (170 mg, 0.47 mmol.),2-pyridine methanol (103 mg, 0.95 mmol) and PPh₃ (supported onpolystyrene resin, 320 mg 0.95 mmol) in THF (2 mL) is added DIAD (0.18mL, 0.95 mmol) dropwise at 0° C. under argon. The mixture is allowed towarm to room temperature, stirred for 19 hours, diluted with THF, andfiltered through celite. The filtrate is evaporated in vacuo, and thecrude material is purified on reverse phase HPLC to yield a white solid72 mg, 34%, LC/MS ESI m/z (M+H)⁺=449.7.

The following compounds in Table III are made in an analogous manner:

TABLE III LC/MS Name Structure (M + H) 5-(5-Benzyloxy-pyridin-2-yl)-furan-2-carboxylic acid ((S)-2- hydroxy-2-methyl-1-methylcarbamoyl-propyl)- amide

424.4 5-[5-(Benzyloxy)pyridin-2-yl]- N-[(1S)-2-(methylamino)-2-oxo-1-(tetrahydro-2H-pyran-4- yl)ethyl]furan-2-carboxamide

450.44 5-[5-(Benzyloxy)pyridin-2-yl]- N-[(1S)-1-cyclohexyl-2-(methylamino)-2- oxoethyl]furan-2-carboxamide

448.47 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(pyridin-2- ylmethoxy)pyridin-2-yl]furan- 2-carboxamide

449.53 5-[5-(1-Benzofuran-2- ylmethoxy)pyridin-2-yl]-N-[(1S)-1-cyclohexyl-2- (methylamino)-2- oxoethyl]furan-2-carboxamide

488.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(pyridin-4-ylmethoxy) pyridin-2-yl]furan- 2-carboxamide

449.46 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-imidazol-4- yl)methoxy]pyridin-2-yl}furan-2-carboxamide

452.49 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(6-methylpyridin-2- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

463.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-imidazol-5- yl)methoxy]pyridin-2-yl}furan-2-carboxamide

452.49 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1,5-dimethyl-1H-pyrazol- 3-yl)methoxy]pyridin-2-yl}furan-2-carboxamide

466.47 5-(5-Benzyloxy-pyridin-2-yl)- furan-2-carboxylic acid ((S)-cyclohexyl-methylcarbamoyl- methyl)-amide

462.46 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-pyrazol-3- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

452.47 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3-methylbenzyl)oxy] pyridin-2-yl}furan-2-carboxamide

462.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3,5-dimethylbenzyl)oxy] pyridin-2-yl}furan-2- carboxamide

476.5 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1S)-1-phenylethoxy] pyridin-2-yl}furan-2- carboxamide

462.74 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1R)-1-phenylethoxy] pyridin-2-yl}furan-2- carboxamide

462.74 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-imidazol-2- yl)methoxy]pyridin-2-yl}furan-2-carboxamide

452.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(4-methylpyridin-2- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

463.47 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(1H-pyrazol-5- ylmethoxy)pyridin-2-yl]furan- 2-carboxamide

438.74 5-(5-Benzyloxy-pyridin-2-yl)- furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

408.43 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3-methyl-1H-pyrazol-5- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

452.5 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(pyridin-3-ylmethoxy) pyridin-2-yl]furan- 2-carboxamide

449.66 5-[5-(5-Methyl-3H-imidazol-4- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

452.51 5-[5-(2,5-Dimethyl-2H- pyrazol-3-ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-cyclohexyl-methylcarbamoyl-methyl)-amide

466.68 5-[4-(2,5-Dimethyl-2H- pyrazol-3-ylmethoxy)-phenyl]-furan-2-carboxylic acid ((S)- cyclohexyl-methylcarbamoyl- methyl)-amide

465.53 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1-methyl-1H-pyrazol-5- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

452.68 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(2-methylpyridin-4- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

463.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(3-methylpyridin-4- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

463.71 5-[5-(1,5-Dimethyl-1H- pyrazol-3-ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2-methyl-1-methyl-carbamoyl-propyl)-amide

426.47 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(2,6-dimethylpyridin-4- yl)methoxy]pyridin-2-yl}furan- 2-carboxamide

477.55 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[5-(1H-imidazol-5- ylmethoxy)pyridin-2-yl]furan- 2-carboxamide

438.49 N-[(1S)-2-(methylamino)-2- oxo-1-(piperidin-4-yl)ethyl]-5-{5-[(1-methyl-1H-imidazol-4- yl)methoxy]pyridin-2-yl}furan-2-carboxamide

453.48 5-{5-[(1,5-dimethyl-1H- pyrazol-3-yl)methoxy]pyridin-2-yl}-N-[(1S)-2-methyl-1-(4- methyl-1H-imidazol-2-yl)propyl]furan-2-carboxamide

449.67 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1R)-1-(pyridin-4-yl) ethoxy]pyridin-2-yl}furan-2- carboxamide

463.54 5-[5-((R)-1-Phenyl-ethoxy)- pyridin-2-yl]-furan-2- carboxylicacid ((S)-2-methyl- 1-methylcarbamoyl-propyl)- amide

422.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1S)-1-(pyridin-2- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

463.51 5-[5-((S)-1-Phenyl-ethoxy)- pyridin-2-yl]-furan-2- carboxylicacid ((S)-2-methyl- 1-methylcarbamoyl-propyl)- amide

422.48 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1S)-1-(pyridin-4- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

463.52 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[(1R)-1-(pyridin-2- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

463.5 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{5-[1-(pyridin-3- yl)ethoxy]pyridin-2-yl}furan-2- carboxamide

463.74 5-[5-(5-Methyl-3H-imidazol-4- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid ((S)-2- methyl-1-methylcarbamoyl- propyl)-amide

412.5 5-[5-(5-Methyl-3H-imidazol-4- ylmethoxy)-pyridin-2-yl]-furan-2-carboxylic acid [(S)- methylcarbamoyl-(tetrahydro-pyran-4-yl)-methyl]-amide

454.57 5-[4-(5-Methyl-3H-imidazol-4- ylmethoxy)-phenyl]-furan-2-carboxylic acid [(S)- methylcarbamoyl-(tetrahydro-pyran-4-yl)-methyl]-amide

435.5

EXAMPLE 2N-[4-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan-2-yl)phenyl]-5-methylfuran-2-carboxamide

Step 1:

(S)-2-Amino-2-cyclohexyl-N-methyl-acetamide hydrochloride (0.75 g, 3.6mmol) is taken up in dichloromethane (5 mL) and DIEA (1.87 mL, 10.7mmol) is added to the solution. 5-(4-Nitro-phenyl)-furan-2-carboxylicacid (0.92 g, 3.9 mmol) EDC (1.37 g, 7.2 mmol) and HOBT (0.97 g, 7.2mmol) are added and the reaction is stirred at room temperatureovernight. The reaction is diluted with DCM and washed with 10% citricacid. The combined organic layer is washed with saturated sodiumbicarbonate, brine and dried over anhydrous magnesium sulfate. Thesolution is filtered and concentrated in vacuo to give a solid that ispurified on silica gel (hexanes/ethyl acetate) to provide 0.96 g of thetitle compound 63% LC/MS ESI m/z (M+H)⁺=383.3.

Step 2:

5-(4-Nitro-phenyl)-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide (760 mg, 1.96 mmol),acetic acid 15 mL and zinc (1.2 g, 19 mmol) are combined and stirred atroom temperature for 30 minutes. The crude reaction mixture is filteredthrough celite, washed with acetonitrile and the combined washingsconcentrated in vacuo. The crude material is taken up in 10% methanol inDCM and washed with saturated aqueous sodium bicarbonate. The organiclayer is dried, filtered and evaporated in vacuo to yield the titlecompound that is used without further purification, 660 mg, 94%, LC/MSESI m/z (M+H)+=356.2.

Step 3:

5-(4-Amino-phenyl)-furan-2-carboxylic acid((S)-1-cyclohexyl-2-methylamino-allyl)-amide

(35 mg, 0.1 mmol) is dissolved in DMF (1 mL) and 4-methylmorpholine isadded (43 uL, 0.4 mmol). HATU (57 mg, 0.15 mmol) in 1 mL of DMF is addedto 5-methylfurancarboxylate (14 mg, 0.11 mmol), and this mixture isadded to the amine mixture and the resulting solution stirred overnight.After 16 hours the solvents are evaporated in vacuo and the residuepurified by reverse phase LC to give the title compound 20 mg, 43%,LC/MS ESI m/z (M+H)+ 464.2.

The following compounds in Table IV are made in an analogous manner:

TABLE IV LC/MS Name Structure (M + H) N-{4-[5-({(1S)-1-cyclohexyl-2-[(1-methoxypropan-2- yl)amino]-2-oxoethyl}carbamoyl)furan-2-yl]phenyl}-1-benzofuran-2- carboxamide

558.49 N-[4-(5-{[(1S)-1-cyclopropyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine- 2-carboxamide

433.67 6-Methyl-N-[4-(5-{[(2S)-3- methyl-1-(methylamino)-1-oxobutan-2-yl]carbamoyl} furan-2-yl)phenyl]pyridine-2- carboxamide

435.64 N-[4-(5-{[(1S)-1-cyclohexyl- 2-{[(2S)-1-methoxypropan-2-yl]amino}-2-oxoethyl] carbamoyl}furan-2- yl)phenyl]-6-methylpyridine-2-carboxamide

533.54 N-[4-(5-{[(1S)-1-cyclohexyl- 2-{[(2S)-2-hydroxypropyl]amino}-2-oxoethyl]carbamoyl} furan-2-yl)phenyl]-6-methyl-pyridine-2-carboxamide

519.53 N-[4-(5-{[(1S)-1-cyclohexyl- 2-{[(2R)-2-hydroxypropyl]amino}-2-oxoethyl]carbamoyl} furan-2-yl)phenyl]-6-methyl-pyridine-2-carboxamide

519.53 N-[6-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan- 2-yl)pyridin-3-yl]-1-benzofuran- 2-carboxamide

501.47 N-[6-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-3-yl]-6-methylpyridine-2-carboxamide

476.47 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-4,5-dimethylfuran- 2-carboxamide

478.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-imidazole-4-carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-imidazole-5-carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-6-methylpyridine- 2-carboxamide

475.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylpyridine- 3-carboxamide

475.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-pyrazole-5-carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-3-methylfuran-2- carboxamide

464.1 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(2-methylfuran-3- yl)carbonyl]amino}phenyl) furan-2-carboxamide

464.1 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylfuran-2- carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methyl-1H-pyrazole-3-carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-pyrazole-3-carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-methyl-1H-pyrazole-4-carboxamide

464.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]imidazol[1,2-a]pyridine-2-carboxamide

500.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2- oxoethyl]carbamoyl}furan-2- yl)phenyl]-8-methyl- imidazo[1,2-a]pyridine-2- carboxamide

514.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-7-methylimidazo[1,2-a]pyridine-2-carboxamide

514.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-5-methylimidazo[1,2-a]pyridine-2-carboxamide

514.2 5-Cyano-N-[4-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan- 2-yl)phenyl]imidazo[1,2-a]pyridine-2-carboxamide

523.2 Imidazo[1,2- a]pyridine-2,6- dicarboxylic acid 6-amide 2-[(4-{5-[((S)-cyclohexyl- methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}- phenyl)-amide]

543.2 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)phenyl]-1-benzofuran-2- carboxamide

500.1

EXAMPLE 3N-(3-{5-[((S)-Cyclohexyl-methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}-benzyl)-2-fluoro-isonicotinamide

Step 1:

5-Bromo-furan-2-carboxylic acid (2.0 g, 10.4 mmol) is dissolved in DMF(25 mL) and HATU (4.3 g, 11.5 mmol), DIEA (5.8 mL, 31 mmol) and(S)-2-amino-2-cyclohexyl-N-methyl-acetamide hydrochloride (2.97 g, 10.4mmol) are added. The reaction is stirred at room temperature overnight.After 16 hours, the reaction is quenched with water and the productextracted with ethyl acetate. The organic layer is dried (sodiumsulfate), filtrated and evaporated in vacuo to give a grey solid, 2.8 g,78% LC/MS ESI m/z (M+H)⁺=343.3.

Step 2:

5-Bromo-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide (500 mg, 1.45 mmol),2-NBoc-aminomethyl phenylboronic acid (365 mg, 1.45 mmol) andBis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium (II)salt (206 mg, 0.29 mmol) are suspended in DMF (7 mL) and 2M Na₂CO₃aqueous solution (2 mL) is added. The reaction is vortexed and thenheated in microwave reactor at 100° C. for 60 minutes. The reactionmixture is diluted with 6 mL DMF and 4 mL of water and stirredvigorously for 1 h to form a suspension that is filtered to give a lightyellow solid that is used without further purification, 0.69 g, 95%,LC/MS ESI m/z (M+H)+470.5.

Step 3

To a suspension of(3-{5-[((S)-cyclohexyl-methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}-benzyl)-carbamicacid tert-butyl ester (4.3 g, 7.32 mmol) in MeOH (74 mL) is added 4N HClin dioxane (18 mL) and the resulting suspension is stirred at roomtemperature for 16 hours. The reaction mixture is diluted with ethylacetate and basified to pH 10 with saturated NaHCO₃ aqueous solution.The water layer is extracted with a copious amount of ethyl acetate. Thecombined organics are washed with water, brine, dried over MgSO₄, andconcentrated in vacuo to give a bright yellow solid which is purified onsilica to give the title compound as a off-white solid, 1.37 g, 50%,LC/MS ESI m/z (M+H)+370.5.

Step 4:

To a solution of 2-fluoro-isonicotinic acid (22 mg, 0.16 mmol) in DMF (1mL) is added HATU (61 mg, 0.16 mmol) and Et₃N (0.044 mL, 0.3 mmol).After stirring at room temperature for 30 minutes, a solution of5-(3-aminomethyl-phenyl)-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide trifluoroacetate salt (50mg, 0.12 mmol) in DMF (1 mL) is added. The reaction is stirred for 2hours, diluted with ethyl acetate and the organic layer washed withwater and brine. The organic layer is evaporated in vacuo, and theresulting oil is purified by reverse phase HPLC to give the titlecompound as a solid, 21 mg, 41%, LC/MS ESI m/z (M+H)+493.5.

EXAMPLE 4N-[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-5-(3-{[(propan-2-ylcarbamoyl)amino]methyl}phenyl)furan-2-carboxamide

To a solution of 5-(3-aminomethyl-phenyl)-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide (20 mg, 0.05 mmol) in DMF(0.5 mL) is added 2-isocyanato-propane (5.8 μL, 0.06 mmol). After 2 hstirring at room temperature, the mixture evaporated in vacuo andpurified on reverse phase HPLC. The product is obtained as a pale yellowsolid, 16 mg, 63%, LC/MS ESI m/z (M+H)+=455.5.

EXAMPLE 5 2-methylpropyl[3-(5-{[(1S)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan-2-yl)benzyl]carbamate

To a solution of 5-(3-aminomethyl-phenyl)-furan-2-carboxylic acid((S)-cyclohexyl-methylcarbamoyl-methyl)-amide (37 mg, 0.10 mmol) in DMF(2.0 mL) is added 4-methylmorpholine (44 μL, 0.40 mmol) followed byisobutyl chloroformate (21 mg, 0.15 mmol). After stirring at roomtemperature for 12 hours, the mixture is evaporated in vacuo and theresulting oil purified on reverse phase HPLC to obtain a white solid, 26mg, 54%, LC/MS ESI m/z (M+H)+=470.4.

The following compounds in Table V are made in an analogous manner toexamples 3, 4, and 5:

TABLE V LC/MS Name Structure (M + H) 5-{4- [(acetylamino)methyl]phenyl}-N-[(1S)-1-cyclohexyl-2- (methylamino)-2- oxoethyl]furan-2-carboxamide

412.44 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-benzofuran-2- carboxamide

514.47 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]imidazo[1,2-a]pyridine-2-carboxamide

514.48 N-{[2-(5-{[(2S)-3-methyl-1- (methylamino)-l-oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-2-(trifluoromethyl)pyrimidine- 4-carboxamide

505.44 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6- methylpyridine-2-carboxamide

490.51 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4- yl]methyl}pyridine-2-carboxamide

476.49 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6-fluoropyridine-2-carboxamide

494.49 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-1,5-dimethyl-1H-pyrazole-3- carboxamide

493.52 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-5- methylpyridine-3-carboxamide

490.49 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-4,5-dimethylfuran-2-carboxamide

493.51 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-5-ethylfuran-2-carboxamide

493.51 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-1-benzofuran-2-carboxamide

515.49 6-Methyl-N-{[2-(5-{[(2S)-3- methyl-1-(methylamino)-1- oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4- yl]methyl}pyridine-2- carboxamide

450.47 N-{[2-(5-{[(2S)-3-methyl-1- (methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4- yl]methyl}pyridine-2- carboxamide

436.45 6-Fluoro-N-{[2-(5-{[(2S)-3- methyl-1-(methylamino)-1- oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4- yl]methyl}pyridine-2- carboxamide

454.51 5-Methyl-N-{[2-(5-{[(2S)-3- methyl-1-(methylamino)-1- oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4- yl]methyl}pyridine-3- carboxamide

450.52 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-2-(trifluoromethyl)pyrimidine- 4-carboxamide

545.53 1,5-Dimethyl-1H-pyrazole-3- carboxylic acid {2-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-pyridin-4-ylmethyl}-amide

453.57 4,5-Dimethyl-furan-2- carboxylic acid {2-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-pyridin-4-ylmethyl}-amide

453.56 5-Ethyl-furan-2-carboxylic acid {2-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- pyridin-4-ylmethyl}-amide

453.55 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyrimidine-4- carboxamide

476.52 N-{[2-(5-{[(1S)-2- (methylamino)-2-oxo-1- (tetrahydro-2H-pyran-4-yl)ethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-2-(trifluoromethyl)pyrimidine- 4-carboxamide

547.52 N-{[2-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6-(trifluoromethyl)pyridine-2- carboxamide

544.56 N-{[2-(5-{[(2S)-3-methyl-1- (methylamino)-1-oxobutan-2-yl]carbamoyl}furan-2- yl)pyridin-4-yl]methyl}-6-(trifluoromethyl)pyridine-2- carboxamide

504.51 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-6- (trifluoromethyl)pyridine-2-carboxamide

543.54 2-Chloro-N-[3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan- 2-yl)benzyl]pyrimidine-4- carboxamide

510.49 2-Chloro-N-[3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan- 2-yl)benzyl]pyridine-4- carboxamide

509.49 5-(3-{[(tert- Butylcarbamoyl)amino] methyl}phenyl)-N-[(1S)-1-cyclohexyl-2-(methylamino)- 2-oxoethyl]furan-2- carboxamide

469.53 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{4-[(pyridin-4- ylmethyl)carbamoyl]phenyl} furan-2-carboxamide

475.48 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-N′- methylpyrimidine-4,6-dicarboxamide

533.6 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-5-carboxamide

478.36 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-6-methylpyridine- 2-carboxamide

489.35 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylpyridine- 3-carboxamide

489.37 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-5-carboxamide

478.34 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylfuran-2- carboxamide

478.33 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[3-({[(2-methylfuran-3- yl)carbonyl]amino}methyl)phenyl]furan-2-carboxamide

478.31 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylfuran-2- carboxamide

478.31 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methyl-1H-pyrazole-5-carboxamide

478.34 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-3-carboxamide

478.33 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-4-carboxamide

478.33 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{3-[(propanoylamino) methyl]phenyl}furan-2- carboxamide

426.28 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5- (3-{[(2-methylpropanoyl)amino] methyl}phenyl)furan-2- carboxamide

440.31 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3-{[(cyclopropylcarbonyl) amino]methyl}phenyl)furan- 2-carboxamide

438.28 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyridine-2- carboxamide

475.33 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylpyridine- 2-carboxamide

489.38 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-4-ethylpyridine-2- carboxamide

503.42 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(3-{[(furan-2- ylcarbonyl)amino]methyl} phenyl)furan-2-carboxamide

464.27 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-2-carboxamide

478.37 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-2- (trifluoromethyl)pyrimidine-4-carboxamide

544.29 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-7- methylimidazo[1,2-a]pyridine-2-carboxamide

528.38 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5- methylimidazo[1,2-a]pyridine-2-carboxamide

528.23 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[3-({[(4,5-dimethylthiophen- 2-yl)carbonyl]amino}methyl)phenyl]furan-2-carboxamide

508.32 N-[3-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1,5-dimethyl-1H-pyrazole-3-carboxamide

492.38 2-Methoxyethyl [3-(5-{[(1S)- 1-cyclohexyl-2- (methylamino)-2-oxoethyl]carbamoyl}furan- 2-yl)benzyl]carbamate

472.31 Benzyl [3-(5-{[(1S)-1- cyclohexyl-2-(methylamino)-2-oxoethyl]carbamoyl}furan- 2-yl)benzyl]carbamate

504.37 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-4,5-dimethylfuran- 2-carboxamide

492.32 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-5-carboxamide

478.34 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-6-methylpyridine- 2-carboxamide

489.37 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylpyridine- 3-carboxamide

489.37 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-5-carboxamide

478.34 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylfuran-2- carboxamide

478.3 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-[4-({[(2-methylfuran-3- yl)carbonyl]amino}methyl)phenyl]furan-2-carboxamide

478.32 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-5-methylfuran-2- carboxamide

478.29 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-3-carboxamide

478.32 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-pyrazole-4-carboxamide

478.32 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-{4-[(propanoylamino)methyl] phenyl}furan-2-carboxamide

426.27 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(2-methylpropanoyl) amino]methyl}phenyl)furan-2- carboxamide

440.33 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(cyclopropylcarbonyl) amino]methyl}phenyl)furan- 2-carboxamide

438.28 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]pyridine-2- carboxamide

475.32 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-3-methylpyridine- 2-carboxamide

489.34 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-4-ethylpyridine-2- carboxamide

503.39 N-[(1S)-1-cyclohexyl-2- (methylamino)-2-oxoethyl]-5-(4-{[(furan-2- ylcarbonyl)amino]methyl} phenyl)furan-2-carboxamide

464.28 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-2- (trifluoromethyl)pyrimidine-4-carboxamide

544.29 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-methyl-1H-imidazole-4-carboxamide

478.35 N-[4-(5-{[(1S)-1-cyclohexyl- 2-(methylamino)-2-oxoethyl]carbamoyl}furan-2- yl)benzyl]-1-benzofuran-2- carboxamide

514.3 N-[3-(5-{[(1S)-2- (methylamino)-2-oxo-1- (tetrahydro-2H-pyran-4-yl)ethyl]carbamoyl}-2- furyl)benzyl]-6- (trifluoromethyl)pyridine-2-carboxamide

545.54 N-[3-(5-{[(1S)-2- (methylamino)-2-oxo-1- (tetrahydro-2H-pyran-4-yl)ethyl]carbamoyl}-2- furyl)benzyl]-2- (trifluoromethyl)pyrimidine-4-carboxamide

546.49 6-Chloro-N-[3-(5-{[(1S)-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]pyridine-2- carboxamide

469.61 6-Fluoro-N-[3-(5-{[(1S)-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]pyridine-2- carboxamide

453.5 N-[3-(5-{[(1S)-2-hydroxy-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-2- (trifluoromethyl)pyrimidine- 4-carboxamide

520.47 4-Trifluoromethyl-thiazole-2- carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

509.48 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-1- benzofuran-2-carboxamide

474.51 2-Chloro-N-[3-(5-{[(1S)-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]pyrimidine- 4-carboxamide

470.49 5-Bromo-1-methyl-1H- pyrazole-3-carboxylic acid3-[5-((S)-2-methyl-1- methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-benzylamide

516.43 1-Difluoromethyl-1H- pyrazole-3-carboxylic acid 3-[5-((S)-2-methyl-1- methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-benzylamide

474.54 6-Bromo-N-[3-(5-{[(1S)-1- cyclopropyl-2-(methylamino)-2-oxoethyl]carbamoyl}-2- furyl)benzyl]pyridine-2- carboxamide

511.44 N-[3-(5-{[(1S)-1-cyclopropyl- 2-(methylamino)-2-oxoethyl]carbamoyl}-2- furyl)benzyl]-6- (trifluoromethyl)pyridine-2-carboxamide

501.52 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]pyrazine-2- carboxamide

436.3 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]-1H- benzimidazole-2-carboxamide

474.56 1-Methyl-5-trifluoromethyl- 2H-pyrazole-3-carboxylic acid3-[5-((S)-2-methyl-1- methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-benzylamide

506.3 5-{3-[(3-Trifluoromethyl- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

502.48 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]tetrahydro-2H- pyran-2-carboxamide

442.3 5-{3-[(4-Dimethylamino- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

477.4 5-{3-[(3-Methyl- benzoylamino)-methyl]- phenyl}-furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)- amide

448.3 5-{3-[(4-Methoxy- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

464.3 5-{3-[(3,4-Dimethyl- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

462.3 5-{3-[(3-Cyano- benzoylamino)-methyl]- phenyl}-furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)- amide

459.3 5-Trifluoromethyl-2H- pyrazole-3-carboxylic acid 3-[5-((S)-2-methyl-1- methylcarbamoyl- propylcarbamoyl)-furan-2-yl]-benzylamide

492.3 5-{3-[(3-Isopropyl- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

476.4 5-{3-[(3-Methoxy- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

464.3 5-{3-[(Cyclohexanecarbonyl- amino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)- 2-methyl-1-methylcarbamoyl- propyl)-amide

440.3 5-{3-[(4-methyl- benzoylamino)-methyl]- phenyl}-furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)- amide

448.3 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]pyridazine-4- carboxamide

436.3 5-{3-[(4-Cyano- benzoylamino)-methyl]- phenyl}-furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl-propyl)- amide

459.3 5-[3-(Benzoylamino-methyl)- phenyl]-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl-propyl)- amide

434.3 5-{3-[(3-Dimethylamino- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

477.2 1-Methyl-N-[3-(5-{[(1S)-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]piperidine-3- carboxamide

455.4 5-{3-[(3-Trifluoromethyl-4- fluoro-benzoylamino)-methyl]-phenyl}-furan-2- carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

520.3 5-{3-[(4-Isopropyl- benzoylamino)-methyl]-phenyl}-furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl-propyl)- amide

476.4 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]piperidine-2- carboxamide

441.2 3-Methyl-isoxazole-5- carboxylic acid 3-[5-((S)-2-methyl-1-methylcarbamoyl- propylcarbamoyl)-furan-2-yl]- benzylamide

439.3 1-Methyl-N-[3-(5-{[(1S)-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2- furyl)benzyl]piperidine-2- carboxamide

455.4 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]prolinamide

427.1 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]tetrahydro-2H- pyran-4-carboxamide

442.3 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]nicotinamide

435.2 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]morpholine-2- carboxamide

443.2 1-Methyl-N-[3-(5-{[(1S)-2- methyl-1- (methylcarbamoyl)propyl]carbamoyl}-2-furyl)benzyl]- L-prolinamide

441.2 5-[3-(Aminomethyl)phenyl]- N-[(1S)-2-(methylamino)-2-oxo-1-(tetrahydro-2H-pyran- 4-yl)ethyl]-2-furamide

372.47 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]pyridazine-3- carboxamide

436.3 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]piperidine-3- carboxamide

441.2 N-Methyl-N~2~-(5-{3-[({[1- methyl-3-(trifluoromethyl)-1H-pyrazol-5- yl]carbonyl}amino)methyl] phenyl}-2-furoyl)-L- valinamide

506.3 N-[3-(5-{[(1S)-2-methyl-1- (methylcarbamoyl)propyl] carbamoyl}-2-furyl)benzyl]morpholine-3- carboxamide

443.1 6-(2,5-Dihydro-pyrrole-1- carbonyl)-imidazol[1,2-a]pyridine-2-carboxylic acid 3-{5-[((S)-cyclopropyl-methylcarbamoyl-methyl)- carbamoyl]-furan-2-yl}- benzylamide

2-(3-{5-[((S)-Cyclopropyl- methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}- benzylcarbamoyl)- imidazo[1,2-a]pyridine-6-carboxylic acid

2-(3-{5-[((S)-Cyclopropyl- methylcarbamoyl-methyl)-carbamoyl]-furan-2-yl}- benzylcarbamoyl)- imidazol[1,2-a]pyridine-6-carboxylic acid benzyl ester

EXAMPLE 6 5-(5-Phenyl-pyridin-2-yl)-furan-2-carboxylic acid((S)-2-methyl-1-methylcarbamoyl-propyl)-amide

Step 1:

To a solution of 5-(5-hydroxy-pyridin-2-yl)-furan-2-carboxylic acid((S)-2-methyl-1-methylcarbamoyl-propyl)-amide (0.7 g, 2.20 mmol) inanhydrous dichloromethane (10 mL) and anhydrous pyridine (2 mL) at roomtemperature is added trifluoromethanesulfonic anhydride (0.41 mL, 2.42mmol). After 1 hour water (10 mL) is added and the mixture is extractedwith ethyl acetate (20 mL). The organic layer is washed with brine,dried over MgSO₄ and evaporated in vacuo. Trifluoromethanesulfonic acid6-[5-((S)-2-methyl-1-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]-pyridin-3-ylester is obtained as a brown solid and used without furtherpurification, 0.78 g, 79%, LC/MS ESI m/z (M+H)+=450.32.

Step 2:

A flask charged with trifluoromethanesulfonic acid6-[5-((S)-2-methyl-1-methylcarbamoyl-propylcarbamoyl)-furan-2-yl]-pyridin-3-ylester (50 mg, 0.11 mmol), phenylboronic acid (27 mg, 0.22 mmol),palladiumtetrakistriphenylphosphine (13 mg, 0.01 mmol), and potassiumcarbonate (61 mg, 0.44 mmol) is flushed with argon. Toluene (2 mL),ethanol (0.5 mL), and water (1 mL) are added and the reaction is stirredat 100° C. for 2 hours. The reaction is cooled to room temperature,ethyl acetate (10 mL), is added and the mixture washed with water (10mL), brine (10 mL), and dried over MgSO₄. The solution is filtered andevaporated in vacuo to give an oil that is purified by preparative HPLC.5-(5-Phenyl-pyridin-2-yl)-furan-2-carboxylic acid((S)-2-methyl-1-methylcarbamoyl-propyl)-amide is obtained as a whitesolid, 16 mg, 38%, LC/MS ESI m/z (M+H)+=377.43.

The following compounds in Table VI are made in an analogous manner:

TABLE VI LC/MS Name Structure (M + H) 5-[5-(4-Fluoro-phenyl)-pyridin-2-yl]- furan-2-carboxylic acid ((S)-2-methyl-1-methylcarbamoyl- propyl)-amide

396.27 5-[5-(4-Methyl- phenyl)-pyridin-2-yl]- furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

393.44 5-[5-(4-Cyano- phenyl)-pyridin-2-yl]- furan-2-carboxylic acid((S)-2-methyl-l- methylcarbamoyl- propyl)-amide

403.38 5-[5-(1H-Indol-5-yl)- pyridin-2-yl]-furan-2- carboxylic acid((S)-2- methyl-1- methylcarbamoyl- propyl)-amide

417.38 5-[5-(4-Ethoxy- phenyl)-pyridin-2-yl]- furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

422.44 5-[5-(4-Isopropoxy- phenyl)-pyridin-2-yl]- furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

436.45 5-[5-(3-Fluoro- phenyl)-pyridin-2-yl]- furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

396.37 5-[5-(3,5-Difluoro- phenyl)-pyridin-2-yl]- furan-2-carboxylicacid ((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

414.37 5-[5-(1H-Indol-6-yl)- pyridin-2-yl]-furan-2- carboxylic acid((S)-2- methyl-1- methylcarbamoyl- propyl)-amide

417.42 5-[3,4′]Bipyridinyl-6- yl-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

379.37 5-[3,3′]Bipyridinyl-6- yl-furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

379.37 5-(2′-Methyl- [3,4′]bipyridinyl-6-yl)- furan-2-carboxylic acid((S)-2-methyl-1- methylcarbamoyl- propyl)-amide

393.38 5-[5-(2-Amino- pyrimidin-5-yl)- pyridin-2-yl]-furan-2- carboxylicacid ((S)-2- methyl-1- methylcarbamoyl- propyl)-amide

395.37 5-[3,4′]Bipyridinyl-6- yl-furan-2-carboxylic acid((S)-cyclohexyl- methylcarbamoyl- methyl)-amide

419.49 5-(4′-Trifluoromethyl- biphenyl-4-yl)-furan- 2-carboxylic acid((S)- cyclohexyl- methylcarbamoyl- methyl)-amide

484.5

Assessment of Biological Properties

The biological properties of the compounds of the formula I can beassessed using the assays described below in addition to other artrecognized assays.

The EnzoLyte™ 520 Generic MMP Assay Kit (AnaSpec Inc.) can detect theactivity of several MMPs including MMP-1, 2, 3, 7, 8, 9, 13, and 14.This kit uses a 5-FAM/QXL™520 fluorescence resonance energy transfer(FRET) peptide as an MMP substrate. In the intact FRET peptide, thefluorescence of 5-FAM is quenched by QXL™520. Upon cleavage into twoseparate fragments by MMPs, the fluorescence of 5-FAM is recovered, andcan be monitored at excitation/emission wavelengths=490 nm/520 nm Theassays are performed in a convenient 96-well or 384-well microplateformat.

Preferred compounds will have an IC50 of <500 nM.

Therapeutic Use

As can be demonstrated by the assays described above, the compounds ofthe invention are useful in inhibiting MMP-13. Compounds of formula 1are therefore useful in the treatment of diseases including rheumatoidarthritis, osteoarthritis, osteoporosis, peridontitis, atherosclerosis,congestive heart failure, multiple sclerosis and tumor metastasis. Theycan be used in patients as drugs, particularly in the form ofpharmaceutical compositions as set forth herein. As mentionedpreviously, MMP-13 are thought to play a major role on extracellularmatrix degradation and cellular processes such as proliferation,migration (adhesion/dispersion), differentiation, angiogenesis,apoptosis and host defense, compounds of formula I are therefore alsouseful in the treatment of the following diseases:

-   contact dermatitis, bone resorption diseases, reperfusion injury,    asthma, Guillain-Barre syndrome, Crohn's disease, ulcerative    colitis, psoriasis, graft versus host disease, systemic lupus    erythematosus and insulin-dependent diabetes mellitus, toxic shock    syndrome, Alzheimer's disease, diabetes, inflammatory bowel    diseases, acute and chronic pain as well as symptoms of inflammation    and cardiovascular disease, stroke, myocardial infarction, alone or    following thrombolytic therapy, thermal injury, adult respiratory    distress syndrome (ARDS), multiple organ injury secondary to trauma,    acute glomerulonephritis, dermatoses with acute inflammatory    components, acute purulent meningitis or other central nervous    system disorders, syndromes associated with hemodialysis,    leukopherisis, granulocyte transfusion associated syndromes, and    necrotizing entrerocolitis, complications including restenosis    following percutaneous transluminal coronary angioplasty, traumatic    arthritis, sepsis, chronic obstructive pulmonary disease and    congestive heart failure.

As disclosed in the Background of the Invention, the compounds of theinvention will be useful for treating tumor metastasis. These diseasesinclude but are not limited to solid tumors, such as cancers of thebreast, respiratory tract, brain, reproductive organs, digestive tract,urinary tract, eye, liver, skin, head and neck, thyroid, parathyroid andtheir distant metastases. Those disorders also include lymphomas,sarcomas, and leukemias.

Examples of breast cancer include, but are not limited to invasiveductal carcinoma, invasive lobular carcinoma, ductal carcinoma in situ,and lobular carcinoma in situ.

Examples of cancers of the respiratory tract include, but are notlimited to small-cell and non-small-cell lung carcinoma, as well asbronchial adenoma and pleuropulmonary blastoma and mesothelioma.

Examples of brain cancers include, but are not limited to brain stem,optic and hypophtalmic glioma, cerebella and cerebral astrocytoma,medulloblastoma, ependymoma, as well as pituitary, neuroectodermal andpineal tumor.

Examples of peripheral nervous system tumors include, but are notlimited to neuroblastoma, ganglioneuroblastoma, and peripheral nervesheath tumors.

Examples of tumors of the endocrine and exocrine system include, but arenot limited to thyroid carcinoma, adrenocortical carcinoma,pheochromocytoma, and carcinoid tumors.

Tumors of the male reproductive organs include, but are not limited toprostate and testicular cancer.

Tumors of the female reproductive organs include, but are not limited toendometrial, cervical, ovarian, vaginal, and vulvar cancer, as well assarcoma of the uterus.

Tumors of the digestive tract include, but are not limited to anal,colon, colorectal, esophageal, gallblader, gastric, pancreatic, rectal,small-intestine, and salivary gland cancers.

Tumors of the urinary tract include, but are not limited to bladder,penile, kidney, renal pelvis, ureter, and urethral cancers.

Eye cancers include, but are not limited to intraocular melanoma andretinoblastoma.

Examples of liver cancers include, but are not limited to hepatocellularcarcinoma (liver cell carcinomas with or without fibrolamellar variant),hepatoblastoma, cholangiocarcinoma (intrahepatic bile duct carcinoma),and mixed hepatocellular cholangiocarcinoma.

Skin cancers include, but are not limited to squamous cell carcinoma,Kaposi's sarcoma, malignant melanoma, Merkel cell skin cancer, andnon-melanoma skin cancer.

Head-and-neck cancers include, but are not limited tolaryngeal/hypopharyngeal/nasopharyngeal/oropharyngeal cancer, and lipand oral cavity cancer.

Lymphomas include, but are not limited to AIDS-related lymphoma,non-Hodgkin's lymphoma, Hodgkins lymphoma, cutaneous T-cell lymphoma,and lymphoma of the central nervous system.

Sarcomas include, but are not limited to sarcoma of the soft tissue,osteosarcoma, Ewings sarcoma, malignant fibrous histiocytoma,lymphosarcoma, angiosarcoma, and rhabdomyosarcoma. Leukemias include,but are not limited to acute myeloid leukemia, acute lymphoblasticleukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia,and hairy cell leukemia.

Plasma cell dyscrasias include, but are not limited to multiple myeloma,and Waldenstrom's macroglobulinemia.

Besides being useful for human treatment, these compounds are alsouseful for veterinary treatment of companion animals, exotic animals andfarm animals, including mammals, rodents, and the like.

For treatment of the above-described diseases and conditions, atherapeutically effective dose will generally be in the range from about0.01 mg to about 100 mg/kg of body weight per dosage of a compound ofthe invention; preferably, from about 0.1 mg to about 20 mg/kg of bodyweight per dosage. For example, for administration to a 70 kg person,the dosage range would be from about 0.7 mg to about 7000 mg per dosageof a compound of the invention, preferably from about 7.0 mg to about1400 mg per dosage. Some degree of routine dose optimization may berequired to determine an optimal dosing level and pattern. The activeingredient may be administered from 1 to 6 times a day.

General Administration and Pharmaceutical Compositions

When used as pharmaceuticals, the compounds of the invention aretypically administered in the form of a pharmaceutical composition. Suchcompositions can be prepared using procedures well known in thepharmaceutical art and comprise at least one compound of the invention.The compounds of the invention may also be administered alone or incombination with adjuvants that enhance stability of the compounds ofthe invention, facilitate administration of pharmaceutical compositionscontaining them in certain embodiments, provide increased dissolution ordispersion, increased inhibitory activity, provide adjunct therapy, andthe like. The compounds according to the invention may be used on theirown or in conjunction with other active substances according to theinvention, optionally also in conjunction with other pharmacologicallyactive substances. In general, the compounds of this invention areadministered in a therapeutically or pharmaceutically effective amount,but may be administered in lower amounts for diagnostic or otherpurposes.

Administration of the compounds of the invention, in pure form or in anappropriate pharmaceutical composition, can be carried out using any ofthe accepted modes of administration of pharmaceutical compositions.Thus, administration can be, for example, orally, buccally (e.g.,sublingually), nasally, parenterally, topically, transdermally,vaginally, or rectally, in the form of solid, semi-solid, lyophilizedpowder, or liquid dosage forms, such as, for example, tablets,suppositories, pills, soft elastic and hard gelatin capsules, powders,solutions, suspensions, or aerosols, or the like, preferably in unitdosage forms suitable for simple administration of precise dosages. Thepharmaceutical compositions will generally include a conventionalpharmaceutical carrier or excipient and a compound of the invention asthe/an active agent, and, in addition, may include other medicinalagents, pharmaceutical agents, carriers, adjuvants, diluents, vehicles,or combinations thereof. Such pharmaceutically acceptable excipients,carriers, or additives as well as methods of making pharmaceuticalcompositions for various modes or administration are well-known to thoseof skill in the art.

As one of skill in the art would expect, the forms of the compounds ofthe invention utilized in a particular pharmaceutical formulation willbe selected (e.g., salts) that possess suitable physical characteristics(e.g., water solubility) that is required for the formulation to beefficacious.

The invention claimed is:
 1. A compound of the formula (I):

wherein: R¹is C₁-C₅ alkyl optionally substituted with 1-3 substituentschosen from hydroxyl, C₁-C₅ alkoxy which is optionally substituted witha carboxamido group, C₃-C₆ carbocyclyl, amino, alkylamino, dialkylaminoand aryl; R² is C₁-C₅ alkyl, carbocycle, or aryl, each optionallyindependently substituted with 1-2 substituents chosen from amino,hydroxyl, C₁-C₅ alkoxy, oxo, aryl, C₃-C₆ carbocyclyl and carboxyl; R³ isa bond, hydrogen, CH₂ , —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—, —O—CH₂—,—C(O)—NH—CH₂—, —CH₂—NH—C(O), S(O)₀₋₂—, SO₂—NH—or —NH—SO₂—; wherein R_(a)is C₁-C₅ alkyl; R⁴ is pyridinyl optionally independently substitutedwith 1-3 substituents chosen from C₁-C₅ alkyl, C₁-C₅ acyl, amino, aryl,halogen, hydroxyl, oxo, trihaloalkyl, carboxamide and C₁-C₅ alkoxy; X isCH and Ar is furanyl optionally substituted with 1-2 substituents chosenfrom C₁-C₅ alkyl, halogen, amino and oxo; or a pharmaceuticallyacceptable salt thereof.
 2. The compound according to claim 1, andwherein R¹ is C₁-C₅ alkyl optionally substituted with 1-3 substituentschosen from hydroxyl, C₁-C₅ alkoxy which is optionally substituted witha carboxamido group, C₃-C₆ carbocyclyl, amino, alkylamino anddialkylamino; R² is C₁-C₅ alkyl, cyclopropyl, cyclobutyl, cyclopentyl,cyclohexyl, cycloheptyl, phenyl or naphthyl, each optionallyindependently substituted with 1-2 substituents chosen from hydroxyl,C₁-C₅ alkoxy, C₃-C₆ carbocyclyl, phenyl and carboxyl; R³ is a bond,hydrogen, —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—, —O—CH₂—, —C(O)—NH—CH₂—,—CH₂—NH—C(O), SO₂—NH—or —NH—SO₂—; R⁴ is pyridinyl, optionallyindependently substituted with 1-3 substituents chosen from C₁ -C₅alkyl, C₁-C₅ acyl, amino, phenyl, halogen, hydroxyl, oxo,trifluoromethyl, carboxamide and C₁-C₅ alkoxy; and Ar is furanyloptionally substituted with 1-2 substituents chosen from C₁-C₅ alkyl,halogen, amino and oxo.
 3. The compound according to claim 2, andwherein R¹is C₁-C₅ alkyl optionally substituted with 1-3 substituentschosen from hydroxyl, C₁-C₅ alkoxy optionally substituted with acarboxamido group and C₃-C₆ cycloalkyl; R² is C₁-C₅ alkyl, cyclopropyl,cyclopentyl or cyclohexyl, each optionally independently substitutedwith 1-2 substituents chosen from hydroxyl, C₁-C₅ alkoxy and phenyl; R³is a bond, —C(O)—NH—, —NH—C(O)—, —CHR_(a)—O—, —O—CH₂—, —C(O)—NH—CH₂—,—CH₂—NH—C(O), SO₂—NH—or —NH—SO₂—; R⁴ is pyridinyl, optionallyindependently substituted with 1-3 substituents chosen from C₁-C₅ alkyl,amino, halogen, trifluoromethyl and C₁-C₅ alkoxy; and Ar is furanyl. 4.The compound according to claim 3, R¹is C₁-C₅ alkyl optionallysubstituted with 1-2 substituents chosen from hydroxyl and methoxy; R²is C₁-C₃ alkyl or cyclohexyl, wherein the alkyl group is optionallysubstituted with a hydroxyl; R³ is a bond, —C(O)—NH—, —NH—C(O)—,—CHR_(a)—O—, —O—CH₂—, —C(O)—NH—CH₂—, or —CH₂—NH—C(O); R⁴ is pyridinyl,optionally independently substituted with 1-3 substituents chosen fromC₁-C₃ alkyl and trifluoromethyl; and Ar is furanyl.
 5. The compoundaccording to claim 4, and wherein R¹ is methyl; R³ is —O—CH₂—.
 6. Thecompound according to claim 4, and wherein R¹ is methyl; R³ is—NH—C(O)—.
 7. The compound according to claim 4, and wherein R¹ ismethyl; R³ is —CH₂—NH—C(O)—.
 8. A compound chosen from

or a pharmaceutically acceptable salt thereof.
 9. A pharmaceuticalcomposition comprising a therapeutically effective amount of a compoundaccording to claim 1 and one or more pharmaceutically acceptablecarriers and/or adjuvants.